Alternatives to Inbox Works
Compare Inbox Works alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Inbox Works in 2026. Compare features, ratings, user reviews, pricing, and more from Inbox Works competitors and alternatives in order to make an informed decision for your business.
-
1
eM Client
eM Client
Boost your email and skyrocket your productivity with the best email client for Windows and macOS. eM Client is a fully-featured email client with a clean and easy-to-use interface. It also offers features for calendars, tasks, contacts, notes, and chat. eM Client's compatibility is unmatched. You can connect to any email service – it will work. This email client works seamlessly with Google Workspace, Office 365, Outlook, Exchange and virtually all conceivable email technologies. Integrates with Online meeting tools such as Zoom, MS Teams, Google Meet and more. eM Client enhances email communication for professionals and home users alike. It is the only email app on the market with the full support of server-side rules and search, instant message translation, "Snooze email" and “Watch for reply” features + easy to use email encryption (PGP and S/MIME). It also works perfectly with Gmail, including support for tags and signature synchronization.Starting Price: $59.95 one-time fee -
2
Emailgistics
Emailgistics
Emailgistics is a team inbox management solution for Microsoft Office 365. Powerful workflow and analytics features improve team productivity and decision making. Plus, with Emailgistics you continue working in Outlook as your email never leaves Office 365. Route emails efficiently and keep agents focused on their assignments. Redirect time and energy away from manually assigning emails to actually answering them. Tracking to ensure your team replies to customers accurately and promptly. Automated message assignment and workflow rules will route hundreds of emails to the right team members in seconds. Individual agent folders appear within Outlook, helping to ensure your team never misses or duplicates efforts on an email. Prevent emails from falling through the cracks. Receive notifications before emails are at risk of falling behind team standards.Starting Price: $10 per user per month -
3
Superhuman Mail
Superhuman
Superhuman Mail is an AI-powered email application designed to help professionals manage their inbox faster and more efficiently. The platform focuses on improving productivity by reducing the time users spend reading, writing, and organizing emails. With features like keyboard shortcuts, reminders, and AI-assisted writing, Superhuman helps users respond to important messages quickly and consistently. The app integrates with Gmail and Outlook, allowing teams to upgrade their existing email workflows without switching platforms. Users can schedule emails, snooze messages for later, and receive reminders to follow up on unanswered emails. Built-in read receipts and activity indicators provide insight into when recipients open messages or when teammates are replying. By transforming email into a task-driven workflow, Superhuman Mail helps users stay organized and avoid missed communication.Starting Price: $30 per user per month -
4
MyColdInbox
Clustox LLC
MyColdInbox is a web-based shared inbox and email management platform for teams handling cold-outreach replies across multiple sending accounts. It connects Gmail and Google Workspace, Outlook and Microsoft 365, and compatible IMAP/SMTP mailboxes, bringing incoming messages into a unified workspace with each message linked to its source mailbox. Teams can filter and search conversations, label replies, assign threads to teammates, add internal notes, and reply from the original sending account. Role-based workspaces support agencies managing client inboxes, as well as sales development, lead-generation, recruiting, and founder-led outreach teams. MyColdInbox manages replies rather than sending campaigns, allowing teams to keep using their existing campaign tools. It also includes thread status tracking and shared or personal inbox visibility settings.Starting Price: $15/user/month -
5
Spark Mail
Readdle
Love your email again. The best personal email client. Revolutionary email for teams. Intelligent email prioritization, noise reduction, and the most advanced email tools at your disposal. Reach Inbox Zero for the first time. Spark intelligently prioritizes your email. It bubbles important messages from real people to the top. Pin and reply to those, and batch archive the rest. Spark reduces the noise by only notifying you about emails from people that you know. Reclaim your space for creativity and get peace of mind. We do our best work as part of a team. Spark allows you to create, discuss, and share email with your colleagues. Take your team collaboration to the next level. Collaborate with your teammates using real-time editor to compose professional emails. Invite teammates to discuss specific email and threads. Ask questions, get answers, and keep everyone in the loop. Save time when you regularly send similar email messages to people.Starting Price: $6.39 per user, per month -
6
TeamInbox
Zoho
Team collaboration made easy with shared inboxes. Create common inboxes for your teams and give them the comfort of working in a transparent workspace. Stay informed on what's happening in your team all the time. Connect your team's email addresses to shared inboxes so each conversation is visible to every team member added to that inbox. TeamInbox gives you what you need for smart collaboration, all in one place. Conduct parallel discussions with your team about complex conversation so you can send out precise responses every time. An empty inbox is always satisfying. Assign thread to the person responsible, archive them once you're done replying, snooze threads of less priority, and thus have a cleared space. Since every thread can have an owner and each team member can clearly see who is working on what, your team can avoid doubling up on the same tasks. Save yourself the confusion of switching between multiple applications: channel your conversations to TeamInbox to streamline.Starting Price: $10 per month -
7
SEDNA
SEDNA Systems
Cut down email volume by up to 95% and get one source of truth for all conversations, data, and documentation through shared team inboxes. Unlike siloed email accounts, SEDNA gives team members controlled transparency of all correspondence, attachments, and actions taken within a project or message thread—along with quick composition and sharing capabilities—for more efficient communication and effortless collaboration. Each email within a team inbox has its own activity panel to host internal conversations, contextual data, and time-stamped activity that enables team members to work with—and around—one message in place of forwards, reply-alls, and cc’s that bloat email volume. The Activity Panel lets you see automatically generated or manually applied message details like category tags, job references, and people involved, as well as who viewed the message, who replied, and how so. And collaboration is easy with the ability to tag others and add comments for real-time discussion. -
8
Extra Thursday
Extra Thursday
Extra Thursday is an AI-powered inbox assistant that connects to your Gmail and Google Calendar (via OAuth) to transform email management into a fast, context-aware, streamlined workflow. It treats your inbox like a database: it can scan thousands of emails in seconds, extract key insights or open loops, surface important threads, and highlight action items, so you don’t have to manually sort, search, or triage messages. Extra Thursday also drafts professional replies (from polite follow-ups to technical responses), auto-generates follow-up emails, and lets you review/edit before sending, dramatically reducing the time you spend writing and replying. With deep-context AI reading and understanding entire conversations, the platform helps manage email overload and makes your inbox actionable, rather than overwhelming. Privacy-wise, emails and calendar data are only fetched on demand per session; Extra Thursday does not store your full inbox or use your content to train its models. -
9
MailClark
MailClark
MailClark is an external communications bot solution that centralizes all correspondences into Slack or MS Teams for easier communication. With MailClark, users can allow the bot to host the help desk of their customer support team, create a team inbox for their sales or marketing team, and more. MailClark also features a shared inbox that stores mentions, internal-only comments, collision detection, and more. Be faster and better in your customers, suppliers, colleagues replies as well as in engaging conversation with your team. Get "Too Fast Too Furious" in your workspace. Collectively manage your external messages from customers or any external contacts, directly in your collaborative tool (Slack or Microsoft Teams). Never miss any external messages, email, Facebook or Twitter messages. MailClark reminds you to take care of each of your customers or external contacts.Starting Price: $9.00/month -
10
ClientFlow
ReportGarden
Shared Inbox and Project management software for Client service teams. Manage your team’s email conversations, tasks and timesheets on a single platform. ClientFlow gets your personal email conversations, your team's group email conversations and client communication on a single shared platform where every mail is owned up and is responded to. Have all your conversations with clients in one place, Standardize Approval process with Custom branded Approval requests and automate repeated conversations with customized message templates. Connect your Email accounts or Set up auto-forwarding from any email address and share with Teammates so they have visibility into all Emails Conversations on one shared inbox software without having to switch between different group mail accounts. ClientFlow works a lot like your email client but builds on top of it to include useful features that facilitate group conversations much better.Starting Price: $19 per month per user -
11
Fast Reply
Fast Reply
Fast Reply is a custom keyboard for iPhone that keeps your most-used replies one shortcut or one tap away. Texts, DMs, emails, support replies, and marketplace messages: save a reply once, send it anywhere. Type a short trigger like “omw” or “addr” and it expands into the full message at the cursor, or browse the reply library from the keyboard and tap without leaving the current app. Fill-in-the-blank variables such as {name} and {date} make one template reusable in every conversation. It also includes on-device AI rewriting on supported iPhones, nested folders, attachments, smart collections, iCloud sync, and private folder sharing. The keyboard and existing replies are free to use, plus five replies users create. Pro unlocks unlimited replies, trigger expansion, variables, AI Assist, attachments, and sync.Starting Price: Free; Pro from $2.99/month -
12
Mixmax
Mixmax
Get more replies, book more meetings, and ensure nothing falls through the cracks. Powering fast growing companies that care about customer experience. Win more replies, meetings, and deals with smart messaging. Improve the customer experience and increase team engagement. Know exactly which candidates open your email, and what content they viewed. Increase sales performance, align your reps, and automate busywork. Analyze performance trends and improve process form a bird’s eye view. Open more doors and 10x your productivity without leaving your inbox. Improve CRM hygiene and automate busywork with automatic Salesforce syncing. You'll know as soon as someone opens your message with real-time email tracking & alerts. Know exactly which messages get the most engagement. Compare impact by team, individual, and campaign. Receive alerts on desktop, email or Slack based on the actions you choose.Starting Price: $9.00/month/user -
13
Scape
Scape
Scape is a Mac desktop email client for professionals and teams who manage work through email. It connects to a Google account to bring Gmail messages and calendar context into an inbox, where it organizes messages with priority labels and helps users find conversations. Its AI features use email, calendar, meeting transcripts, and attachments to draft replies, summarize information, and prepare follow-ups for review before sending. Users can record meetings locally on a Mac and generate transcripts, with support for 99 transcription languages; it can capture calls in Zoom, Google Meet, Microsoft Teams, FaceTime, and in-person conversations. Scape also supports assistant access to connected services such as Slack, Linear, GitHub, and Notion, and offers an MCP interface for authorized external AI tools. A free plan and paid plans provide different AI usage and automation limits.Starting Price: $0/month -
14
Harmony
Harmony
Harmony AI Email Assistant is a voice-powered Gmail manager that transforms your inbox into a hands-free, eyes-free experience, ideal for multitasking or accessibility needs. It reads new messages aloud with natural, thread-aware summaries and lets you perform actions, reply, archive, delete (single or batch), star, mark unread, move to labels or folders, and unsubscribe from newsletters, using simple voice commands as you would with an assistant. You can compose and send new emails entirely by voice, draft replies in real-time, and request smart summaries of lengthy threads. Designed with a privacy-first architecture, Harmony never stores your email content, uses end-to-end encryption, asks for confirmation before sending or deleting, and ensures recoverable actions so mistakes aren’t permanent. Harmony integrates seamlessly with Gmail, providing adaptive AI voices, customizable wake words, and secure OAuth authentication.Starting Price: Free -
15
Right Inbox
Ramp Ventures
Have clients in different timezones? Feel inspired at night but only want your email to land the next morning? Our schedule emails to send later feature solves this issue. With Right Inbox, you can write emails at a time that works for you, then have them sent at a time that works for your recipients. You can schedule emails using your recipient’s time zone to ensure they arrive at just the right time. Write follow-ups beforehand and schedule to send them if recipients don’t reply to your first email. When they do, follow-ups are automatically cancelled. Right Inbox’s email sequences feature ensures you never miss a follow-up again. Automate your outreach with email sequences in Gmail. We often have to wear different hats when dealing with email. There is no email signature that fits all. With Signatures, you can create multiple signatures in Gmail and apply the perfect one for every situation with one click. Switch between signatures without leaving your editor in Gmail.Starting Price: $5.95/month/user -
16
SkimAI
SkimAI
Transform your inbox into a hub of efficiency. Streamline your communication to focus on what matters most. SkimAI is an AI assistant that transforms emails into actionable insights. It integrates seamlessly with Gmail and highlights unread emails, generates concise summaries of incoming messages, and drafts replies for your quick review and dispatch. Introducing intelligent email management. With AI-driven scheduling and custom workflows, SkimAI is more than a tool, it’s your productivity partner, evolving with your needs. Transform your emails into clear actionable insights. Embrace an inbox where efficiency thrives, decisions are swift, and clarity is paramount. Gain valuable time as communication is curated and prepared, even when you're away from your inbox. -
17
Text Zen
Text Zen
Text Zen - Text Expander will increase your productivity. Frustrated by repetitive replies and endless form-filling? Start saving your time and streamline repetitive responses with text expander snippets and shortcuts! Key Features - Smart Text Expansion: Instantly turn short shortcuts into full phrases, templates, or messages across any website or app. - AI-Powered Reply Generation: Generate context-aware replies for emails, chats, and support tickets in one click. - Custom Shortcuts & Variables: Create dynamic templates with dates, names, and placeholders that auto-fill as you type. - Cross-Platform Web Support: Works in Gmail, LinkedIn, Jira, Google Docs, messengers, and most web inputs. - Cloud Sync & Backup: All your shortcuts are securely synced across devices with automatic backup. - Team Sharing: Share shortcut packs with teammates to standardize communication and speed up workflows.Starting Price: $5/month -
18
Cora
Every
Cora is an AI-assistant for managing your Gmail inbox that acts like a chief of staff, screening your incoming emails, prioritizing what’s important, drafting replies in your own style, and sending you brief summaries of everything else. It learns your email habits and communication voice, lets you adjust its behaviour via natural chat or settings, and helps keep your inbox zero. Twice a day, it sends a “Brief” summarizing non-urgent messages (newsletters, notifications, FYIs) so you can skim instead of wading through hundreds of emails. You always retain control, Cora doesn’t send or delete emails itself, drafts appear for you to review before sending. It promises strong privacy; your data isn’t used to train external models, there’s no back-door access to your mail, and the product meets standards like Google Verification, CASA Tier 2, GDPR, and ISO 27001.Starting Price: $12 per month -
19
Newton Mail
CloudMagic
Email app with space-age features for modern-day business communication. Designed to delight, for all your email accounts, on all your devices: iPhone, iPad, Android, Mac & Windows. Read Receipts comes baked in with Newton, with all your sent emails tracked without you having to do anything. Apart from giving you instant gratification, it also makes your follow-ups timely and effective. Recap automatically brings back conversations that are waiting for your reply or that need following up. It also covers other mails with due dates, reminders etc., so that nothing slips through the cracks. Tidy Inbox helps you stay clear of unwanted emails by automatically removing newsletters and other distractions from inbox. Focus on the emails that actually matter and make your inbox distraction-free. Most of us are assigned tasks via email. But some of us like to manage them outside our Inbox. Newton lets you save emails to Todoist, Evernote, OneNote, Trello or Asana in a single click.Starting Price: $49.99 per year -
20
Daykeeper
SkyPorch
Daykeeper gives solopreneurs one inbox for every customer message from their app. Add the support chat widget with your AI builder, or let your coding agent (Claude Code, Cursor) set up the whole inbox with one CLI command. There's no signup form, and it's live in less than a minute. Save your best answers as saved replies. If a customer closes the chat, your reply still reaches them by email. On paid plans, replies come from your own domain. Daykeeper is priced per workspace, never per seat, so adding a teammate costs $0. Free covers 100 conversations a month. Pro is $19.99 per workspace for 2,000. Developers get an API, Node, web and React Native SDKs, and a local MCP server, with scoped permissions and an audit trail for anything an agent touches. Data is hosted in the US, and EU hosting is supported.Starting Price: $0 -
21
DMzio
DMzio
DMzio is a web-based Instagram messaging automation tool for e-commerce sellers, creators, and teams that engage customers through Instagram. It lets users set keyword-based comment triggers that send private replies, build automated DM flows, use AI-assisted replies for common questions, and manage conversations through a shared inbox with handoff to a human teammate. The platform also provides analytics and consent-based contact capture for follow-up. Shopify and Slack integrations connect Instagram conversations with commerce and team workflows. DMzio offers a free Creator plan and paid Pro and Business plans. It supports social engagement, product inquiries, lead generation, and customer conversation management through Instagram.Starting Price: $0 -
22
Mailbird
Mailbird
Mailbird is a fast, modern email client for Windows and macOS, trusted by millions with over 4 million downloads. It brings all your accounts—Gmail, Outlook, iCloud, IMAP, Exchange—into one unified inbox with smart features like Snooze, Undo Send, Quick Reply, Send Later, email snippets, and drag-and-drop organization. Customize your workspace with themes, custom avatars, and flexible layout options. Stay productive with sidebar integrations for Google Calendar, WhatsApp, Slack, Trello, Asana, and more—no app switching needed. Built natively for each platform and optimized for both Windows 11 and Apple Silicon, Mailbird delivers speed, simplicity, and seamless control. Available in a Free version with an optional Premium upgrade. Backed by top-rated customer support.Starting Price: Free -
23
Shortwave
Shortwave
Email connected the world, but it lost its magic along the way. We believe it deserves better, and we're on a mission to bring email up to speed (literally) with modern messaging apps. Email should prioritize people, not advertising. Getting through your inbox shouldn't require busywork, and sending an email should be as fast as typing a text message. That's why we're building Shortwave: to recapture the magic of email with a beautifully designed product that works for everyone. Create channels to keep your team on-topic and make past conversations searchable. Instant delivery, typing indicators, and emoji reactions make conversations with other Shortwave users come to life. Use @-mentions to push notify the right people when you need them to join in. Shortwave connects to your existing Gmail account. Sign in today to get your inbox organized in minutes. You'll have the option to invite your teammates later. -
24
Perplexity Email Assistant
Perplexity AI
The Email Assistant turns your inbox into a more actionable space by handling organization, replies, meeting scheduling, and prioritization automatically. It organizes emails by tagging them (e.g., what needs a reply vs what’s informational) to help you maintain “inbox zero.” It composes responses; AI-drafts are generated automatically, matching your tone and style. For scheduling, the Assistant manages the back-and-forth of arranging meetings and places them on your calendar without requiring extra effort. It also helps you search through your email, delivering summaries of meetings, key emails, and daily priorities so you can start your day informed. Underpinning all this is a focus on security and privacy. Supported integrations include Gmail and Outlook.Starting Price: Free -
25
PriorityEngine
Alleria AI Inc.
PriorityEngine is an AI-powered business email intelligence platform that helps businesses identify what needs attention first and act before important opportunities, risks or commitments are missed. It analyzes business communication to identify signals, context, classification, business facts, business impact, attention, priority and recommended actions, with explainability for its conclusions. Messages are organized into operational views including Needs Attention, Follow Up, Clients, Opportunities, Billing, Financial, Documents, Schedule, People & Companies, Newsletter and Noise. PriorityEngine supports connected business inboxes, intelligent prioritization, search, automatic synchronization, AI-assisted replies and team collaboration. It is designed to turn everyday inbox volume into structured, actionable business intelligence. -
26
Za-zu
Za-zu
Za‑zu is the outbound sequencer that growth people actually enjoy, built for a future where smart growth professionals are building, automating, and rigorously testing outbound campaigns. The cold email command center helps teams orchestrate multichannel outreach, with email, calls, and social media, by providing dynamic campaign scheduling, automated follow‑ups, reply detection, conditional logic branches, AB testing, and analytics dashboards. Users can design sequences visually, add personalization tokens, enforce limits to stay compliant, and trigger actions based on replies or prospect behavior. Integrations include popular CRMs, data enrichment tools, and calendars, enabling seamless workflows without spreadsheets. It supports team collaboration with roles, permissions, shared templates, and performance tracking, plus a unified inbox to manage replies and snooze or assign conversations.Starting Price: $99 per month -
27
Inbox2Action
Inbox2Action
Inbox2Action brings the power of Notion to where you actually work: Your Gmail inbox. Every email becomes actionable with a single click. Tasks, leads, projects, receipts are organized instantly in Notion without leaving Gmail. Your inbox transforms from a source of stress into a streamlined command center. See what matters. Notion properties appear right in Gmail: status, due dates, priorities, all visible at a glance. Smart labels ensure important emails never disappear. Your favorites and recent databases surface automatically, putting your workflow at your fingertips. Collaborate effortlessly. Reply to comments, assign tasks, and update pipelines without switching apps. Your team stays aligned. You stay productive. Smart technology that stays out of your way. Background updates happen automatically. Visual indicators show sync status clearly. Everything just works.Starting Price: $8/month -
28
Helpmonks
Helpmonks
Save time and money with our team collaboration tool. We unified shared mailbox, customer management, live chat, email marketing tools, and marketing automation tools to help your business succeed. Our team email management tools make it easy to get your whole business on the same page and boost team productivity. Collaborate in yourshared inbox. Delegate emails, add private email notes for you and your team, and much more. Collision detection prevents duplicate replies to your customer responses. However, Helpmonks is so much more than a team inbox. With Helpmonks, you also get advanced contact management with a complete customer conversation history. Plus, add our live chat tool and email marketing platform to boost sales and business growth. Reach more customers, nurture leads, and build customer loyalty with our email automation tool. Automatically send an email drip campaign based on your customer's behavior with ease with the Helpmonks marketing automation software.Starting Price: $9 per month -
29
Extremis
Software Company
Extremis is a shared team inbox for handling customer conversations across WhatsApp, Instagram, Facebook Messenger, and Gmail. It connects WhatsApp Business through Meta’s Cloud API and brings incoming messages into a workspace where teams can assign owners, route chats by round-robin, weighted allocation, or workload, and coordinate with status controls, snoozing, internal notes, mentions, quick replies, and labels. Contact records support custom fields, merging, and CSV export, with WooCommerce order information alongside conversations. Teams can use WhatsApp templates and schedule campaigns, then review response-time, agent-performance, and attendance reports. An AI Agent can suggest replies or respond automatically, with handoff to a human. Teams can connect their own API keys from OpenAI, Anthropic, Google, OpenRouter, or Groq.Starting Price: $49/workspace/month -
30
reMARK by Nordic IT
Nordic IT
reMARK is a comprehensive dashboard that includes all of the tools you need to run the day. The reMARK software inbox includes not only emails, but also your calendar, live chat, contacts and mailing lists, integrations and so much more. Utilize reMARK’s team overview to collaborate on every email thread, leave internal notes or messages, know exactly who has opened or replied to an email, and add tasks directly to a co-worker or team’s to-do list. With reMARK’s customizable email filters, you can set an unlimited number of filters that seamlessly prioritize and present only the emails that matter to you. Your teams will fly through thousands of emails each day without missing any critical information. With reMARK’s powerful boolean search functionality, you can search through millions of emails to find the exact email, document, or term you’re looking for in a split second, even if it’s inside an attachment.Starting Price: Free -
31
Inboxful
Bokha
Inboxful is an Arabic- and English-language CRM for customer service teams in Egypt and the Gulf, available in desktop, tablet and mobile browsers. It brings customer conversations, history, cases and callbacks into one workspace, with one responsible agent per conversation. Optional connections include WhatsApp, Facebook, Instagram, Telegram, email, website chat and SMS, subject to scope, setup and approvals; SMS requires provider integration and testing. Teams can use reply shortcuts, saved views, quality scoring, customer surveys, reports and Excel or CSV exports. The AI assistant summarizes conversations and drafts replies for human review and sending; a chatbot can use approved answers with optional automatic replies. Configured read-only ERP lookups bring customer and order information beside conversations. In-app hotline calling requires configuration and trial calls at the customer site. Role-based access, branding and in-app guides support daily work.Starting Price: $100 per month -
32
Briskine
Briskine
Templates allow you to answer common questions in just a second. You can even use custom variables such as the recipient's first name to personalize your messages. Having team members writing the same responses is both time consuming and tedious. Briskine has template sharing and syncing, so everyone is on the same page. Briskine is a browser extension that speeds up your email and message writing. Reply faster by inserting templates in Gmail, Outlook.com, LinkedIn, or any other website. Templates can be associated with a keyboard shortcut. To insert a template, you just need to type its shortcut and press TAB. Having team members writing the same responses is both time consuming and tedious. Briskine has template sharing and syncing, so everyone is on the same page.Starting Price: $7 per user per month -
33
Text Lightning
Xequte Software
Finally the solution to Email Overload! Text Lightning, Outlook Power Tools, enables you to clear your overflowing Inbox faster than ever before. Every message you send will be better written and more detailed than if you typed it yourself, because Text Lightning gives you instant access to the text you have used to reply to similar messages in the past. You need only think of the best response to a question once and then reuse it whenever you are asked again. All of the phrases and text snippets you commonly write in your messages can be added with a single click (plain text or formatted). The most relevant items are highlighted and any that do not match the current product or profile are hidden. You can also instantly add a selection of files, embedded images and formatted rich text. With a single click you can search all your past responses to a message or contact. Text Lightning will even warn you whenever you intended to attach a file but forgot to do so. -
34
WarmInbox
Offpista LTD
WarmInbox helps individuals and teams improve email deliverability by simulating real, human-like interactions—sending, opening, replying, clicking, and threading—to gradually build sender reputation and avoid spam folders. Designed for marketers, founders, sales teams, and agencies, WarmInbox runs automatically in the background, warming up each email account with trusted, natural-looking activity. Key Features: - Automated email warm-up, Monday through Friday - Realistic activity: opens, clicks, replies, and threads - Live dashboard to monitor deliverability health and inbox placement - Support for multiple inboxes and team members - Invite teammates and manage everything from one central dashboard - Secure setup using app passwords or OAuth - Pause or remove campaigns anytime - Transparent pricing with per-seat billing Whether you're warming a new domain or trying to fix poor deliverability, WarmInbox ensures your emails land where they should—the inbox.Starting Price: $15/month -
35
EasyReply
EasyReply Ltd
EasyReply is a cloud help desk that brings email, WhatsApp, website live chat through Support Bubble, and Slack into a shared inbox. Teams can assign conversations, mention teammates, add private notes, and organise tickets with labels, priorities, and service-level targets. AI drafts replies, summarises conversations, and suggests knowledge-base answers; AI agents handle routine questions and hand off uncertain cases to people. Teams can automate tagging, routing, responses, and webhooks. Integrations add customer context from Stripe, Chargebee, Shopify, HubSpot, Linear, and GitHub. Designed for small and mid-sized support teams in SaaS, e-commerce, and service businesses, EasyReply offers a free plan and paid subscriptions with monthly AI credits. New workspaces can try paid features for 14 days without a credit card.Starting Price: $24/user/month -
36
Replyco
Replyco
Take Control of Your Inbox. Overwhelmed by customer emails? Centralize your inbox and improve response rates across eBay, Amazon, Shopify and more. Grow Your eCommerce Business with Lightning Fast Replies. The magic formula for increased sales? Happy buyers + 5-star feedback = Improved marketplace relationships. Organize. Everything you need to centralize and organize customer emails across marketplaces and stores. Automate. Reduce workload with automated organization, auto-responders, auto-assign & SLA priority settings. Chat Communicate. Respond to messages quickly and efficiently with email templates and access to order information. Reporting. Monitor performance to fine tune your customer support strategy for stores and teams. Returns / Refunds. Process Returns and Refunds for your eBay stores directly from Replyco. Support Multi-Channel Support Integrates directly with eBay, Amazon, Shopify, Linnworks, WooCommerce, BigCommerce, Gmail and more.Starting Price: $33 per month -
37
GenMail
Genspark
GenMail is an AI-assisted email and calendar client for people who want to manage multiple mailboxes in one workspace. Desktop and mobile apps connect Gmail, Outlook/Microsoft 365, iCloud, NAVER, Yahoo! JAPAN, LINE WORKS, and other accounts that support IMAP/SMTP, with provider-specific limitations. It combines a unified inbox, folders and search with AI inbox triage, message summaries, reply drafts based on the user's writing style, follow-up suggestions, scheduled sending, and natural-language email search. A unified calendar brings together supported connected calendars and includes event creation and RSVP tracking. Users can review and edit AI-generated drafts before sending; account-based AI features consume Genspark credits. GenMail is available for macOS, Windows, iOS, Android, and on the web, while connected mail remains with its email provider.Starting Price: Free -
38
SharedInbox
SharedInbox
Manage customer support and communication directly from Slack. Collaborate effectively on shared emails like support@your.domain without sharing passwords among team members. SharedInbox connects to any email you currently use. You can also get an @in.sharedinbox.co email you can setup forwarding to. Just hit the command SharedInbox /compose and send emails to anyone. On any email thread, Just hit Reply Mail. Each incoming or outgoing email creates a new Slack Message Thread, easily tag teammates and discuss. Every account comes with a support site your users can send and manage their support requests from. No new installation or application required. Use a tool your team is already familiar with Slack. Know when your email is delivered and when it is opened. See files and pictures attached to your emails directly in Slack. Create a custom signature to attach to your emails. Set a custom message that is automatically sent once you get an email.Starting Price: $5 per month -
39
SocialHub
maloon
Respond to customers faster with personal replies direct from your Smart Inbox. Instantly understand how to engage with a full history of past interactions. Share the workload and collaborate in real-time from one shared inbox. Assign conversations, track activity on every message and streamline approval systems. With our Priority Inbox you will be able to react faster. All important requests will be moved automatically to a separate inbox where you can reply faster to them. With the automated actions of SocialHub Smart Inbox you can automatically assign tickets to the Community Manager that is able to answer the request the best. That will help your team to do a better job. With Smart Rules you can define actions that will be executed, even when your team is not online. This means that posts, that do not apply to your netiquette will not appear on your page. Even at 4 am in the night.Starting Price: $99 per user per month -
40
QQ Agent Mail
Tencent
QQ Agent Mail is a mailbox service from QQ Mail designed for AI agents, with an account kept separate from a user’s personal mailbox. Users authorize access through WeChat and install the QQ Agent Mail command-line tool and agent skill to connect their agents. The service lets agents retrieve mailbox details and aliases, list messages by folder or conditions such as date, unread status, and attachment presence, read message content and attachments, and search by keywords, sender, recipient, dates, or attachment criteria. Agents can compose and send messages, reply, forward, and upload or download attachments. It is intended for developers and others configuring AI agents to handle email through a dedicated account, including automated correspondence and agent-assisted email review. The published skill documentation describes a confirmation step before sending. -
41
Tobachat
Tobachat
Tobachat is a cloud-based WhatsApp Business platform for small businesses and service and sales teams. Its shared inbox lets teammates handle conversations from a business number, assign chats, and use contact records and labels to organize follow-up. Teams can send approved message templates and opt-in campaigns, create visual automations for replies, reminders, booking changes and updates, and request customer reviews. An AI agent can draft or send answers based on business-provided information, with conversation handoff to a teammate when needed. Built-in integrations connect Zapier, FareHarbor and LetsBook; webhooks and API-call steps support connections to other systems. The platform is designed for customer communication and routine service workflows on WhatsApp Business Platform, including booking-related notifications and marketing to opted-in contacts.Starting Price: €29/month -
42
Yapper
Yapper Labs
Yapper is an AI customer messaging assistant for service businesses such as salons, veterinary clinics, restaurants, repair shops, coaches, tutors, and gyms. It replies in a business's voice to WhatsApp, Instagram, Messenger, and website chat, handling routine questions and handing off conversations when staff are needed. The assistant learns services, prices, and policies from websites, documents, and team answers; remembers customer bookings, preferences, and notes; and updates its playbook when staff correct a reply. A shared inbox lets teams review chats on desktop or phone, pause automation, take over, and return conversations to the assistant. Multiple phone numbers, Instagram accounts, Facebook Pages, and websites can each have separate voices, hours, and rules. Built on the official WhatsApp Business Platform, Yapper costs $399 per month and includes unlimited teammates, senders, and customers. Businesses can text the assistant before activating a paid plan.Starting Price: $399/month -
43
Kondo
Kondo
Kondo is a productivity tool built to make LinkedIn direct message management faster, cleaner, and more effective. It offers split inboxes so you can organize conversations by priority, ensuring important opportunities don’t get lost in clutter. With snooze functionality, you can bring messages back to the top of your inbox at the perfect follow-up time. Keyboard shortcuts and saved snippets make responding and navigating through messages lightning fast. Kondo also syncs your DMs, labels, and notes directly to your CRM, Notion, Clay, or other workflow tools. The result is a streamlined LinkedIn messaging experience that helps you move twice as fast and never miss a valuable connection.Starting Price: $30.00/month (Basic) -
44
Textology
Textology
Supports text-enablement of existing landlines including toll-free and non-toll-free numbers. Supports auto replies such as “we are currently closed and will get back to you” and quick replies based on standard, pre-written customer responses. Allows you to assign a conversation to an agent group or another individual. Supports both one-on-one conversations and one-to-many messages sent to a distribution list of customers. Supports message forwarding to your email inbox and mobile messaging app — from where you can also reply.Starting Price: $78 per month -
45
Gmelius
Gmelius
Gmelius is the first collaboration platform that integrates with your tools and brings your team together. It turns email into a collaborative and flexible channel that ensures all your teammates stay in sync while working from their favorite tools, whether it’s Gmail, Slack, Zoom or Trello. Gmelius unifies internal and external communication while empowering your team with collaborative tools including shared inboxes, shared labels, internal email notes, shareable project boards, shareable email sequences, email templates, and more.Starting Price: Free -
46
Inbox Zero
Inbox Zero
Inbox Zero has undergone a thorough security process with Google to ensure the protection of your emails. You can even self-host Inbox Zero on your own infrastructure. Don't search for the unsubscribe button. Unsubscribe with a single click or auto-archive emails instead. See who's sending you the most marketing and newsletter emails to prioritize who to unsubscribe from. View analytic charts to see how often you get emails from certain senders to take action. Understanding your inbox is the first step to dealing with it, understand what is filling up your inbox. Then figure out an action plan to deal with it. Our AI agent will reply, forward, or archive emails based on the rules you provide it. Let our AI plan what to do for you, accept or reject in a click. Turn on full automation once you're confident the AI can work on its own.Starting Price: $10 per month -
47
Opt-Inbox
Sendio
Sendio’s Opt-Inbox is a proprietary sender management process, acting on messages having cleared email security, which would otherwise be released into a user’s inbox, ensuring that recipients only receive messages from desirable sources, whether from individuals or subscriptions, leaving the new yet undecided sources to the recipient’s discretion in a queue separate from the usually messy quarantine queue. Despite being protected by advanced email security systems, many inboxes continue to be inundated with countless security-cleared messages comprised of persistent sales pitches and marketing communications, distribution lists and bulk sources. Separating harmful messages in the quarantine queue from nuisance and potentially desired ones is increasingly difficult. This can become particularly troublesome for executives and professionals who can’t afford to overlook an important email and find out later they had a desirable message (false positive) in their cluttered quarantine queue.Starting Price: $795 per year -
48
Chatwik
Chatwik
Chatwik is an all-in-one customer communication and support platform that brings customer conversations into one unified workspace. Teams can manage live chat, WhatsApp, Facebook Messenger, Instagram, Email, Telegram, LINE, and SMS from a shared inbox. It includes conversation assignment, internal notes, saved replies, customer profiles, CRM, browser session tracking, AI-powered reply suggestions, conversation summaries, translation, and message enhancement. Chatwik also provides a Help Center for self-service support, automation rules, analytics and insights, CSAT tracking, response-time monitoring, and customizable website chat widgets. It helps support, sales, and marketing teams collaborate efficiently, respond faster, and maintain complete customer context across channels.Starting Price: $9.99 -
49
ActiveInbox
ActiveInbox
Stop emails sinking into the inbox swamp by turning them into tasks with due dates and adding them to projects. Don't 'send and pray' emails you spent precious time writing. Deliver at the time they'll be read and let ActiveInbox track them to completion. Achieve inbox zero, then glide through your day, by having just one place to focus on emails and tasks, and breaking your Today list into digestible chunks. With ActiveInbox there's no need to adopt yet another new system; no call to copy, paste and switch between software. It's right with you where you spend the lion's share of your day wrangling tasks: in Gmail. Ever been writing an email, and worried that you’ve forgotten something? Not with ActiveInbox. With the existing tasks and conversations for each contact available at-a-glance you’ll be right on track. Release your mind from niggling anxiety, by letting ActiveInbox track emails until recipients respond.Starting Price: $4.16 per month -
50
ReplyLoop
ReplyLoop
ReplyLoop is a structured reply intelligence platform designed to improve revenue performance driven by inbound conversations. It captures inbound sales and customer messages from connected channels (e.g., shared inboxes or support queues), generates AI-assisted reply suggestions, and requires human approval before sending to ensure quality control. Every approved reply is logged, categorized, and performance-tracked against outcomes such as response rate, deal progression, and conversion. Over time, the system identifies which reply structures, tones, and content patterns drive measurable results. Teams gain standardized messaging, reduced response variability, and analytics that connect communication quality to revenue impact. ReplyLoop combines human oversight with AI assistance, creating a feedback loop that continuously improves reply effectiveness without sacrificing control or brand integrity.Starting Price: £49/month founding member, £79
