Alternatives to Kolab Now
Compare Kolab Now alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Kolab Now in 2026. Compare features, ratings, user reviews, pricing, and more from Kolab Now competitors and alternatives in order to make an informed decision for your business.
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1
Proton Mail
Proton AG
Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required. -
2
Trumba
Trumba
Trumba is an event calendar and registration platform for your website or intranet. Manage all your event data in one place and publish custom calendars for your end users. Trumba currently powers the event calendars for large organizations and small businesses worldwide. Features include: • Customizable and unlimited calendars to cater to multiple audiences or business units. • Integration with 3rd party calendars to manage and publish all events in one place. • Flexible event management with custom templates and role-based editor access. • Event registration with custom forms and payment gateway support. • Attendee management including automated wait listing. • HIPAA-compliant solution for hospitals and healthcare organizations. • SSO support for user and visitor management. • Automated reminders and follow-ups, calendar syncing and personalized event lists. • Integration services and ongoing support included. • And so much more.... Get a demo or free trial today. -
3
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 -
4
Kopano
Kopano
We provide you with your digitally sovereign solution to keep track of your e-mails and calendars, to organize yourself with tasks or to stay in contact with team colleagues via video meeting. Kopano Groupware is an e-mail and calendaring solution, which can be operated digitally sovereign. Its functionality is comparable to that of Microsoft Outlook and Exchange. Kopano Groupware installations can be operated with more than 100,000 users. Kopano Groupware is an e-mail and calendar server that provides users with their daily communication and organizational data on all devices and connects teams. Data can be jointly edited in public folders or shared with others from your own inbox.Starting Price: $17 per year -
5
Microsoft Exchange
Microsoft
Work smarter with business-class email and calendaring. Exchange helps you collaborate on your critical documents and gives you a focused inbox that prioritizes important messages and adapts to your work style, so you can get more done–faster. Get access to a more personalized inbox with helpful features and a smarter, more organized way to view and interact with email. Search enhancements give you faster and more complete results. With Add-ins, get powerful customization and extensibility, which connect you to modern services and internal line-of-business applications. Organize your time with a calendaring system that goes beyond basic scheduling of appointments and commitments. Automatically capture events from email such as flights and hotel reservations, and get suggestions about where to meet based on your location. Microsoft Exchange Online offers a hosted email service for business. Exchange Online helps protect your information with advanced capabilities. -
6
FullCalendar
FullCalendar
FullCalendar generates real React virtual DOM nodes so you can leverage Fiber, React's highly optimized rendering engine. Reduce your project's bundle size by using FullCalendar's modular plugins. Have a tough problem you can’t figure out? Try searching the documentation first. If you can’t find what you’re looking for, try Googling around. If you still can’t find an answer, post your question on the StackOverflow fullcalendar tag. When entering a new question, make sure you tag it with fullcalendar. Do you want to help the FullCalendar project move forward? FullCalendar has become rather popular over the past few years and there is a lot to be done. Any time and effort you are willing to contribute is greatly appreciated!Starting Price: $480 -
7
grommunio
grommunio
grommunio efficiently summarizes all requirements of modern, digital communication and collaboration. This includes the device and operating system independent management of sensitive data such as e-mail, contacts, calendar, chat, video conference, file sharing and much more – in real time. With open source technology based on Linux, grommunio is scalable and meets the highest security requirements. Thanks to its advanced architecture, grommunio can be integrated into existing systems without great effort. Increase your efficiency by managing emails, contacts, calendars, tasks and much more with just one platform. With integrated enterprise-grade Active Sync, your data is available on all devices in real time. Invite directly from your calendar to online conferences with grommunio Meet, share files of all kinds in grommunio files and talk to your employees at the same time via grommunio chat.Starting Price: €1.99 per mailbox per month -
8
Thunderbird
Mozilla Foundation
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features! Thunderbird makes email better for you, bringing together speed, privacy and the latest technologies. Focus on what matters and forget about complexity. Multiple features, such as built-in Do Not Track and remote content blocking, work together to ensure your safety and privacy, so you can have peace of mind. With Add-ons (Extensions & Themes) and many more features you can change the look and feel of Thunderbird in an instant. Organize your schedule and life’s important events in a calendar that’s fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars. Thunderbird is an open source project, which means anyone can contribute ideas, designs, code, and time helping fellow users. -
9
Open Web Systems
Open Web Systems
We will never sell your data to anyone else. Secure your data with powerful file access control, multi-layer encryption, machine-learning based authentication protection and advanced ransomware recovery. Enjoy constant improvements from a thriving and transparent, entirely open-source community development model, free from lockins, paywalls, advertising and covert surveillance. Open Web Systems is a collaboration between The Open Co-op and Collective Tools and is governed by its members as a cooperative. Together we are building the regenerative, commons economy. Your personal, customisable, welcome screen where you can place quick links to your most important tools and resources – and search across all of your files and applications at the same time. Create documents and spreadsheets and collaborate with others via desktop, mobile and web. Find files with powerful search, share your thoughts in comments or lock files until you are done with them.Starting Price: $4.94 per month -
10
KumoMTA
Kumo Corp
KumoMTA is an Open-Source, enterprise-grade email message transfer agent (MTA) software for sending high-volume, business-critical emails. KumoMTA is typically chosen by high-volume email users looking to replace PowerMTA, Momentum, or traditional Open Source MTAs. KumoMTA offers high-performance message relay to the tune of millions of messages per hour per server, combined with extreme flexibility and configurability through its use of a Lua scripting engine for configuration and message management. For more information on KumoMTA see our Sourceforge project page.Starting Price: $0 -
11
BlackBerry Hub+
BlackBerry
Up your game with BlackBerry apps on your Android phone. Give your phone a productivity boost from BlackBerry®. Whether it’s integrating all your messages and social notifications into one place or giving you a really smart Calendar, BlackBerry makes sure doing stuff on your Android™ phone is effortless. Keep organized with BlackBerry® Hub+ Inbox. Inbox consolidates all your email, calendar events and social notifications from apps like Facebook, WeChat, Twitter, LinkedIn and WhatsApp in one unified app. You can also sync your BlackBerry Hub+ Inbox with Wear OS by Google devices to receive notifications and respond directly from your watch. BlackBerry® Hub+ Calendar allows you to schedule appointments and create events with ease. Use the Agenda, Day, Week, or Month view to quickly glance at your events and respond to meeting invitations directly from the BlackBerry Hub+ Inbox. You can also call into meetings directly from your event reminder with just one tap. -
12
Developermail
Developermail
You should be in full control over your mailbox. Developermail provides mailboxes that can be configured as if they were self-hosted. Including things like forwards, aliases, catchalls and sieve filters. So start thinking about optimizing your mailbox and forget about time consuming server adminstration. Every mailbox comes with calendars, an address book and reminders. Developermail integrates perfectly into your daily developer life. All configuration is done in YAML files which are stored in your private git repository on our servers. Simply "git clone" and "git push" to update configration settings. We value security and privacy like you do. Developermail uses battle tested encryption technologies in order to keep your data safe. We will never sell your private data nor share it with third-parties for marketing purposes. -
13
Canary Mail
Canary Mail
Email, meet AI. Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!Starting Price: $20/month -
14
Microsoft Outlook
Microsoft
Microsoft Outlook is the all-in-one email, calendar, and contact management platform designed to keep you organized and connected across your digital life. With Outlook, you can manage multiple accounts—including Gmail, Yahoo, and iCloud—within one unified inbox. Intelligent scheduling tools and shared calendars help you stay on top of meetings, events, and personal reminders. The built-in Microsoft Copilot assists with writing emails, summarizing long threads, and managing tasks to boost productivity. Outlook also offers enterprise-grade security, filtering out spam, phishing, and malware to keep your data safe. Whether on desktop, mobile, or web, Outlook helps you manage communication and time with clarity and confidence. -
15
Spike
Spike
Spike brings your entire workspace into your Inbox: email, chat, calendar, calls, team collaboration, tasks — to one powerful Inbox. Everything you need to get your work done is in a single feed, so you can finally give the app-switching a rest. Spike’s conversational email fuses traditional email with instant messaging — eliminating cluttered email threads. With real-time conversations and live collaboration, have better interactions and a more human communication experience. Spike is available on iOS, Android, Mac, Windows & Web.Starting Price: Free -
16
Tuta
Tuta
Tuta offers a highly secure, encrypted email, calendar, and contacts service designed to give users complete control over their data. With end-to-end encryption powered by quantum-safe cryptography, Tuta ensures that all your communications are private and safe from surveillance. The platform is easy to use, supports mobile apps for Android and iOS, and is ad-free, offering a seamless experience across multiple devices. Tuta is committed to using renewable energy to power its servers, ensuring privacy while contributing to a greener future.Starting Price: €1.20 per month -
17
Kerio Connect
Aurea
Secure, enterprise-style email, calendar & collaboration without the high cost. Kerio Connect delivers all the features and functionality for collaboration and messaging solution without the complexity and high price tag of other systems. Email is integrated with shared calendars and scheduling, contacts management, tasks, notes, shared and public folders, and instant messaging. Synchronize messages by direct push to your choice of mobile device via Microsoft ActiveSync. Instant Messaging is XMPP-compatible and can be used from various 3rd party chat/IM applications on desktop and mobile phones. You can install Kerio Connect in 10 minutes and users can be up and running in just 10 minutes more. Kerio Connect can be deployed on-premises or in partner-hosted cloud environments. Deploy for users on Mac, Windows, or Linux; plus full support for Outlook (Windows and Mac) and many other IMAP or POP compliant email clients.Starting Price: $36.50 -
18
XgenPlus
Bharat Sync Technologies Pvt. Ltd.
XgenPlus is a next-generation, feature-rich, and highly secure email solution designed to meet the growing communication needs of businesses, enterprises, and individuals. Developed by Bharat Sync Technologies Pvt. Ltd., Xgen Email stands out as the first email service in the world to support Internationalized Domain Names (IDN), enabling users to create email addresses in multiple Indian languages such as Hindi, Gujarati, Tamil, Telugu, Punjabi, and Urdu. With cutting-edge security features, real-time tracking, advanced collaboration tools, and seamless mobile and desktop integration, Xgen Email ensures that users get the most efficient, private, and productive email experience. Whether you're a startup, a large enterprise, or an individual professional, Xgen Email is the best choice for a secure, smart, and efficient email solution.Starting Price: Free -
19
Alinto
Alinto
Alinto was born in 2000 as a result of Philippe Gilbert’s vision, whose risk paid off! Bringing together a team of passionate developers and experts in cloud messaging, he innovated the sector with the deployment of the first messaging platform, with a Cloud based email solution in Europe, and the first web based email accessible from a mobile phone. We then became a major player in the European digital arena. As a software mail server provider, our R&D, Marketing and Support teams are committed to adopt an approach focused on availability and proximity. In fact, this is much more than an electronic communication solution, as personalized care and solutions are adapted to your real requirements and needs. Besides, our experts are always available to help. Whether you’re a telecom operator, an internet service provider or an IT specialist, we are here for you. -
20
IceWarp
IceWarp
The only office rule is, there is no office. Business email, TeamChat for project teamwork, real-time office document collaboration and online meetings. All in our secure cloud and for half the usual cost. Chat in teams organized around projects, upload files, mention coworkers, comment on posted emails, pin important posts. Integration with email enables sharing received messages directly to TeamChat room for colleagues‘ attention. Skyrocket your office work effectivity with Desktop Client and Desktop Office documents on Windows as well as Linux devices. Get the complete Suite, or choose only the app you need.Starting Price: $312.00/year/user -
21
Neocal
Neocal
Neocal is an AI-powered modern calendar that lets you schedule, update, and manage events using natural language. Simply tell Neocal what you need, and its smart scheduling engine automatically finds optimal slots, avoids conflicts, and adjusts for time zones. Intelligent queries provide instant, contextual answers while quick actions let you reschedule, cancel, or update events via text or voice. Context awareness means Neocal learns your preferences and patterns so it can proactively suggest and confirm changes. Seamless two-way synchronization with Google Calendar (across multiple accounts) ensures that updates in Neocal or Google reflect everywhere instantly, preserving your existing workflow. With a streamlined web interface and real-time dashboards, Neocal works unobtrusively in the background. Connect your calendar with a click, communicate in plain language, review intelligent suggestions, and let the platform handle the rest.Starting Price: Free -
22
Axigen
Axigen Messaging
Offer your customers secure, business-level email hosting with various value added services. An excellent solution for SPs, suitable for thousands to millions of users. Acquire new customers by offering a premium email server solution with a high degree of flexibility, allowing you to automate it within your existing infrastructure. Manage your email, organize and share calendars, sync your mobile devices, all based on a secure and powerful mail server. The perfect answer for businesses of all sizes. Axigen is quite knowledgeable, out of the many hats it wears, take a peek inside and choose what fits you. Manage your email and get stuff done easily with calendars, tasks or notes. Enjoy desktop usability in your browser via keyboard navigation and shortcuts, drag-and-drop, "live" email list view, frequent folders, email filters, out-of-office messages, individual blacklist / whitelist.Starting Price: $266 per year -
23
Callum
Callum
Callum is an AI calendar assistant that brings smart, natural-language control to your work schedule so you can manage your calendar faster and with less friction by speaking or typing what you want done instead of navigating calendar UIs. It works with Google Calendar (with Outlook support coming) and lets you schedule, reschedule, update, delete, and search events simply by telling Callum what you need, helping you find time with individuals or groups by checking everyone’s availability and suggesting optimal slots without endless emails. Beyond basic scheduling, Callum understands context, pulls in details when connected to tools like HubSpot, Greenhouse, and other CRM/ATS systems, and helps you prepare for meetings with relevant historical and deal information so you’re ready before every call. You can also ask conversational questions about your calendar, such as how much free time you have this week or when you last met a contact.Starting Price: Free -
24
Mayday
Mayday
Time is the most important thing you have, because it’s the only thing you can’t buy more of. But your old calendar isn’t helping. It makes it too easy for time to be lost, misspent, or stolen. Mayday is a new kind of calendar that uses AI to help you organize, protect, and manage your schedule so you can spend time in more meaningful ways. The more you use Mayday, the smarter it gets. Mayday evaluates your scheduling preferences and patterns to find the Ideal Times for everything you schedule. Forget about managing different time zones, conflicting priorities, and undocumented routines. Mayday manages the complexity of scheduling with others, so you don’t have to. Mayday’s AI algorithms can automatically suggest the best times to schedule meetings based on your team’s True Availability. As more team members use Mayday, scheduling becomes smarter and more helpful, taking into account everyone’s schedules and preferences. -
25
Skiff
Skiff
Skiff is a private, end-to-end encrypted workspace with Mail, Calendar, Pages, and Drive products for completely secure communication and collaboration. All Skiff products are designed with security and privacy in mind. All apps are built with end-to-end encryption (E2EE), so you never have to share your personal information, sensitive data, or private keys with anyone else. At all times, only you can access the content of your emails. Generous free tier - Enjoy 10 GB of free storage for your email, attachments, documents, and notes. - Create up to 4 free email aliases to protect your identity. Open-source and audited - Skiff Mail is open-source, uses open-source cryptography, and undergoes external security audits. - You can access our whitepaper and code at skiff.com. No trackers or ads - Sign up and upgrade without sharing any personal information; use crypto payments in many different currencies to upgrade. - Your data is never collected, sold, or shared. -
26
NotePlan
NotePlan
Your tasks, notes, and calendar all linked in one place. Use the flexibility of Markdown to quickly create tasks. Add options for repeating to-dos, easily move tasks into the future, and add tags and mentions. Speed up your workflow with natural language input and autocompletion of tags, mentions, and links. Meeting minutes, reference material, or quick notes: store everything in NotePlan. Organize your notes any way you like. From simple folders or a digital Bullet Journal to a fully linked Zettelkasten system. All stored locally and available on every device. A note for each day keeps you in control of your schedule, today and tomorrow. Outline your tasks, write down and link your notes, even block time right in your calendar. See exactly what’s on your calendar, plan ahead, or look back. Everything you put into NotePlan is stored in plaintext Markdown files, easily opened in any text editor. That means you’re never locked in and always in control of your files.Starting Price: $6.99 per month -
27
Reclaim.ai
Reclaim.ai
Smart AI scheduling for busy teams. Reclaim is an AI scheduling automation app that finds the best time for your meetings, tasks, habits, & breaks. Integrate your project management app or to-do list to automatically find the best time to work on your tasks, by priority, before your due dates. Or build your own task list in Reclaim! Automatically schedule your recurring habit routines at the best time around your other calendar events. Want to make time for lunch every day, weekly planning on Friday afternoons, or coding 3x a week? Automatically find the best time for your one-on-one meetings every week. Reclaim will analyze both calendars to find mutual free time, and automatically reschedule your Smart 1:1s if a conflict comes up. Book more meetings (and the right meetings faster) with "high-priority" and "flexible duration" Scheduling Links so you never send a meeting link with no availability again.Starting Price: $6.50 per user per month -
28
PDF Complete
PDF Complete
Learning Center. Get the most out of your PDF software! Explore PDF features and find helpful videos and written tutorials. FAQs. Check out our list of frequently asked questions for helpful information about PDF Complete products and solutions for support questions. Downloads. Start using PDF Complete today! Download our Free Demo to try, or access purchased product downloads anytime on your MyAccount page. Help Desk. Visit the Help Desk to find fast answers to support issues. Submit a trouble ticket to reach a technical support team member. Learning Center. Find helpful tutorials and learn how to use your PDF Complete software. Go to Corporate Edition 4 Tutorials > Go to Office Edition 4.2 Tutorials > Knowledgebase / FAQ. Browse our knowledge base and find answers to frequently asked questions. PDF Watermark Help. Learn why the PDF watermark appears on documents and how to avoid it. Activation Troubleshooter.Starting Price: $49.95 one-time payment -
29
Clockwise
Clockwise
Escape the chaos of work and find your focus with Clockwise. Clockwise is a smart calendar assistant that frees up your time so you can focus on what matters. Clockwise optimizes your calendar to free up blocks of uninterrupted time. With Clockwise you can finally find time for what matters, whether it's a research project, a strategic plan, or your next big idea. The time management toolkit for remote teams that makes collaboration easy. Clockwise creates uninterrupted blocks of time to get things done and to focus on your most important projects. You can count on Clockwise to take care of the busywork, like resolving meeting conflicts, handling different time zones, and always saving time for lunch. Are you a morning meeting person or need to leave early to pick up the kids? Clockwise understands your preferences and helps carve out time for what's essential to you. -
30
Craft
Craft Docs
Craft is an all-in-one workspace designed for capturing notes, managing tasks, and organizing ideas in a seamless and visually appealing environment. It combines documents, to-do lists, calendars, whiteboards, and daily notes into a single platform, allowing users to keep everything connected in one place. With its intuitive interface, Craft makes it easy to move from quick ideas to polished documents across devices. Users can embed tasks directly בתוך documents, ensuring that planning and execution stay aligned. The platform also supports templates, publishing, and sharing, making it suitable for both personal and professional use. Craft integrates with popular tools and AI assistants, enhancing productivity and workflow automation. Its flexible structure allows users to organize content using spaces, folders, tags, or collections. Overall, Craft provides a unified environment for thinking, writing, and planning.Starting Price: $4.80/month -
31
SavvyCal
SavvyCal
You’ll love it for the advanced features to keep you in control of your calendar. They’ll love it for the personalized scheduling experience. Give your schedulers a calendar, not a list of time slots. Allow recipients to overlay their calendar on top of yours to easily find mutual availability. Team scheduling at the click of a button. Automate round robin routing, set up collective scheduling, and add teammates on the fly. Connect all your calendars. Work, personal, side projects...check for conflicts across all of them and set which calendar you want to store each meeting in. Take back control of your schedule. Present ranked availability windows to encourage recipients to pick the optimal time (while still remaining flexible). Protect yourself from meeting overload. Set limits for how many meetings can be booked per day, week, or month so you always reserve time for deep work. Create naming conventions that find scheduling availability based on calendar events you create.Starting Price: $12 per user per month -
32
Magical
Magical.so
Check your calendar without switching tabs, seamlessly schedule events, and jump straight into your meetings from anywhere. Magical uses GPT-4 and Whisper from openAI to generate meeting notes, recommend action items, and act as your meeting assistant. Experience accessibility at its finest by automatically syncing your meeting notes into Notion, and share them with others.Starting Price: $15 per month -
33
iCloud
Apple
See your photos, files, notes, and more across all your devices. They’re safe, up to date, and available wherever you are. If you lose a device, use Find My iPhone on iCloud.com to locate it, turn on Lost Mode, or erase it remotely. Securely store your files in iCloud Drive so you can share them with friends and colleagues. Add or edit photos and videos on one device, see them on all your devices. -
34
Rise
Rise
Rise helps you schedule, optimize and protect your day to give you more time for what's important. Rise is a beautiful calendar that uses hundreds of signals to find the best times to meet, resolve conflicts and blocks off focus time. Upgrade your important events to flexible meetings and Rise takes care of the rest. Automatically block off your dentist appointment in your private calendar in your work calendar, without exposing personal information. Reclaim valuable time by accepting suggestions by Rise that work for everyone. Pin your favorite teammates for quick scheduling and to instantly see what they are doing.Starting Price: $16 per month -
35
OpenBoard
dslul
OpenBoard is a 100% foss keyboard based on AOSP, with no dependency on Google binaries, that respects your privacy. -
36
Tuta Calendar
Tuta
Tuta Calendar is a zero-knowledge calendar with quantum-safe encryption, ensuring that all your events are protected from snooping and prying eyes. Whether you schedule events, receive event invitations, or share your calendar with others, all steps in the Tuta Calendar are automatically encrypted end-to-end. This means your data belongs to you, and no one else can access it. The intuitive, clean design allows for easy organization of appointments, business meetings, and repeating tasks. Push notifications are sent securely, so no third party can track you. Two-factor authentication can be enabled to protect your login credentials from malicious attacks. Tuta Calendar is available with free and open source desktop clients. You can share calendars and events with your family, organization, or company with a few taps.Starting Price: €3 per month -
37
Calendar
Calendar
With Calendar Contacts, you can easily manage and track connections as well as send meeting invites, introduces associates, and find a time on your calendar to spend with friends. Whether it's lunch meeting with a colleague, a catch-up over coffee with a friend, or an upcoming conference call with a client, you can use Calendar Contacts to spend event creation. Inviting guests only takes seconds now that your contacts are integrated with your calendar. Calendar will continue to evolve as your needs and behaviors change to provide a suite of tools. As your organization grows, it becomes harder to manage processes. When it comes to your scheduling, we'd wager it hasn't been updated in years. Calendar intelligently categorizes project meetings to figure out the relationships between your plans and the people in your meetings.Starting Price: $6 per user per month -
38
Cal.com
Cal.com
Meet Cal.com, the event-juggling scheduler for everyone. Focus on meeting, not making meetings. Free for individuals. Cal reads your availability from all your existing calendars ensuring you never get double booked! Set repeating schedules for the times of the day and week that you want people to be able to book you. Share your short cal.com personal link and make it incredibly easy for people to book a meeting at a time that works for both of you! Set availability, location, duration and more on a per-link basis. Send bookings to different calendars or set a default. Cal.com checks for conflicts across all of your calendars and only offers times that are open. Never get double booked again. Cal.com enables you to build processes around your events. Notifications, reminders and follow ups are automatically taken care of. With Cal.ai - harness the future of AI scheduling.Starting Price: $12 per user per month -
39
Toki
Toki
Toki is a powerful AI calendar assistant designed to manage your time with the speed and intelligence of AI, turning everyday inputs into structured, actionable schedules without friction. It allows you to create, edit, and organize events using natural inputs such as text, voice, images, screenshots, or even emails, making scheduling feel effortless and intuitive. It centralizes all your calendars, Google, Apple, Outlook, and more, into a single unified view, helping you quickly find free time and avoid conflicts while automatically detecting overlaps and suggesting better scheduling options. Toki goes beyond basic reminders by acting as a proactive planning agent that transforms ideas and to-dos into complete plans, deciding timing, participants, and details for you, while also learning your habits and preferences over time to improve accuracy and personalization. It enables you to save tasks for later and reminds you at the right moment.Starting Price: $3.59 per month -
40
lemcal
lempire
lemcal is the tool that allows you to schedule all your meetings on autopilot. It eliminates unnecessary back-and-forth and helps you book more meetings. By linking lemcal to your Microsoft or Google account, users will be able to book slots directly in your calendar without any friction. lemcal lets you import your Calendly schedules in seconds. It also generates a fully personalized booking page to help you attract leads, reduce no-shows, and build your personal or company brand. lemcal automatically tracks the performance of your meetings and syncs your leads with the tools you love, reducing the time it takes to schedule meetings. lemcal allows you to sync with lemlist, Google Calendar, Microsoft Teams, and Zoom (coming soon). Your personalized lemcal link opens to your fully customized booking page, where people can schedule meetings with you quickly and easily. Sign up now to reserve your unique link.Starting Price: Free -
41
Breeze
Breeze Calendar
Breeze is a minimalistic scheduling application to help you avoid finding common time for meetings over email or text. It connects with your Google Calendar to manage appointments that your guests can schedule from a simple web page. You can have as many Breeze pages as you want. A Breeze page is set per each type of event you configure within Breeze, and each page comes with a unique URL you can share with your guests. You can have event pages for business or for your personal activities - all hassle free and according to your availability! Quickly setup your preferences, share your Breeze pages with your guests and let us do the rest. Once a guest books time with you, Breeze will automatically add it to your calendar and create a Google Meet or Zoom call link for you. Breeze works great for entrepreneurs and teams all over the globe and across multiple time zones, with automated detection and settings.Starting Price: $5 per month -
42
Multi-Planning
Multi-Planning
Multi-Planning is a shared online calendar software that brings clarity and coordination to team scheduling across multiple sectors. Designed for simplicity, it helps organizations manage daily operations, dispatch staff, and centralize communications in one visual, color-coded interface. Teams can schedule work orders, manage interventions, distribute documents, and collect electronic signatures — all from a single, cloud-based dashboard. With no installation required, Multi-Planning works seamlessly on desktop and mobile, keeping field and office teams synchronized in real time. The platform adapts to industries such as construction, healthcare, facility management, education, and transportation, improving productivity and reducing administrative overhead. Backed by 1:1 customer support, Multi-Planning ensures every user receives personalized guidance from setup to customization. -
43
pepito
pepito
With pepito, working hours and vacation days can be easily managed and duty rosters can be created in an uncomplicated manner. The clever tool thinks ahead and precisely records both absences and overtime. On request, pepito takes over the complete time recording and summarizes all information clearly. Thanks to pepito, the right employees are deployed at the right time. The heart of the tool is the requirement and deployment planning as the basis for securing all shifts and working time windows. Duty times are displayed transparently for planners and employees, absences are clearly stored, and actual and target working times are automatically compared. Regardless of the industry, all information about each employee is clearly stored in the digital personnel file. These can be called up by decision-makers at any time. Documents from applicants, certificates, time limits, holiday agreements, notes from employee appraisals, but also master data, and much more have their place here.Starting Price: Free -
44
OpenSMTPD
OpenSMTPD
OpenSMTPD is a free implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange emails with other systems speaking the SMTP protocol. Started out of dissatisfaction with other implementations, OpenSMTPD is a fairly complete SMTP implementation. OpenSMTPD is primarily developed by Gilles Chehade and Eric Faurot, with contributions from various OpenBSD hackers and members from other communities.Starting Price: Free -
45
iRedMail
iRedMail
The right way to build your mail server with open source softwares. Works on CentOS Stream, Rocky, Alma, Debian, Ubuntu, FreeBSD, OpenBSD. With iRedMail, you can deploy an OPEN SOURCE, FULLY FLEDGED, FULL-FEATURED mail server in several minutes, for free. We did the heavy lifting of putting all the open source components together and applying best practices. Our product does all the major tasks for you. Furthermore we offer professional support to back you up in case you have some problems. You have all personal data on your own hard disk, you can control the email security, inspect transaction log. No other organization can see the content of all messages. All components used in iRedMail are open source softwares, and you get the bug fixes and updates from the Linux/BSD venders you trust. iRedMail is the right way to build your mail server with open source softwares.Starting Price: Free -
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Breezit
Breezit
Running an event business is both exciting and exhausting. Numerous follow-up reminders, scattered customer data, and back-and-forth emails can really take the fun out of the process. Breezit helps bring the fun back by offering a broad set of tools tailored specifically for small businesses and sole traders in the event industry. Create your service profile in a couple of minutes and get everything you need to operate and grow your business: - A clean, SEO optimized listing - your clients will feel like shopping online - A shearable booking link to share on socials or integrate into the website - A CRM for bookings, created specifically for your needs - A calendar with dynamic pricing, where you can adapt your pricing for offseason or weekdays - Contract signing - Secure payment collection straight to your bank account - Review management tools - Passive income from referring partners and demand generation tools (coming soon) Start your free trial nowStarting Price: $20/month/user -
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BusyCal
BusyCal
BusyCal displays your calendar in Day, Week, Month, Year and List views. What makes BusyCal unique is its ability to customize these views to more precisely meet your needs. You can choose the number of weeks shown in the Month view and the number of days shown in Week view and even customize the calendar's appearance by choosing a font face and size, calendar colors, time format and more. One of BusyCal's most popular features is its embedded info panel that appears in the sidebar, enabling you to quickly view and edit event details with speed and precision. The Info Panel has been completely redesigned in BusyCal and boasts a cleaner, modern look with improved controls for selecting dates and times, adding locations, attendees and more. What's more, the info panel is completely customizable. You can choose to show just the basics, or additional fields like time zones, tags and graphics.Starting Price: $9.99 per month -
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BlendedCal
BlendedCal
BlendedCal helps you get control of your calendars. If you have too many calendar subscriptions to keep up with or need to share some or all of your calendars with others and have them stay up to date, BlendedCal makes it easy with tag-based calendars, event filtering, source filtering, and much more.Starting Price: $0 -
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DayViewer
DayViewer
Whether you need more than a standalone online planner, calendar or to-do list app, or you are looking to get started using a planner online. Using DayViewer as a central time and task management system can help you to transform your productivity from day one. Everything is built-in, so no complex setup or dependencies on third-party apps. Simply set up your online calendar to your preferences, add your tasks, and manage your time with clarity. The easy-to-use Fast Planner system will make planning your week a breeze. Simply set up your task templates and drag and drop them into your day to schedule as needed. It is also an interface where you can adjust task details more efficiently and assign tasks easily if you are scheduling for other team members. DayViewer contains a handy Online Notes system that lets you save rich notes, checklists and other information so you can refer to them whenever required.Starting Price: $5.00/month -
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Dayshape
Dayshape
Dayshape delivers leading resource management software designed to help organizations achieve extraordinary results. Trusted by Big Four and many other top professional services firms globally, Dayshape is the only solution that combines advanced AI, real-time project financials, and firm-wide insights enabling customers to elevate resource management into a strategic function. The platform seamlessly fits with existing ecosystems through integrating with ERP, PSA, CRM, HR systems, and more. Dayshape also stands out as the only resource management vendor with a Workday packaged solution—built to handle complexity and grow with your firm. By driving profitable growth, powering confident decisions and ensuring satisfied clients and teams, we're helping our customers build strong organizations and careers for the long term.
