Klaviyo vs. OneSignal Comparison


Klaviyo	OneSignal OneSignal, Inc.	+	+
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Fax service features include: - Online Fax Platform - Email to Fax and Fax to Email - Fax API -Online Fax Numbers -Fax Number Porting -Fax Broadcast Text messaging service features include: - 10DLC Registration -> Book a Demo for one-on-one guidance! - SMS & MMS Online, Email to SMS, SMS & MMS API - Mass Text Messaging & SMS Marketing - Subscriber Management Tools - Bulk Upload Contacts to Address Book - Create SMS Templates & Personalization Fields Outstanding value and 5-star service. Our dedicated team are here to help. We are 100% committed to providing the very best service. 55 Ratings Visit Website CloudZero CloudZero is the leader in proactive cloud cost efficiency. We enable engineers to build cost-efficient software without slowing down innovation. CloudZero's next-generation cloud cost optimization platform automates the collection, allocation, and analysis of cloud costs to uncover savings opportunities and improve unit economics. 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About Klaviyo is the AI-first B2C CRM platform that helps you grow by integrating marketing, analytics, and customer service in one solution. Powered by unified data and built-in AI, it's faster and easier than ever to create personalized, lasting customer relationships. Klaviyo unifies your customer profiles by capturing every event, and then lets you orchestrate your email marketing, SMS marketing, push notifications, WhatsApp, and RCS campaigns in one place. Built-in AI agents plan and launch campaigns, personalize every send, answer questions, and resolve issues. With real-time attribution and insights, you'll be able to make smarter, faster decisions that drive ROI. Trusted by more than 170,000 businesses, Klaviyo can grow your business while keeping operations simple and customer relationships strong	About OneSignal is the market leader in customer engagement, powering mobile push, web push, email, and in-app messages for over 1 Million developers and marketing teams. OneSignal takes just minutes to setup, and makes it easy for you to send push notifications and messages to all your users. Access robust features including segmentation, automated messaging, intelligent delivery, A/B testing, and real-time reports. Built for developers, OneSignal makes it easy to code in the language you know with any development environment - all with less than 10 lines of code. It's also the most flexible push provider, with integrations to top analytics providers, DMPs and CRMs, plus Zapier to connect with 1400+ apps and platforms. OneSignal is free to send messages to an unlimited mobile subscribers and up to 10K web push subscribers. OneSignal is used by 76% of the top million sites with push notifications (source: Builtwith).
Platforms Supported Windows Mac Linux Cloud On-Premises iPhone iPad Android Chromebook	Platforms Supported Windows Mac Linux Cloud On-Premises iPhone iPad Android Chromebook
Audience B2C companies interested in marketing automation, full-funnel analytics, and customer service in one easy-to-use platform	Audience Marketing teams, developers, product teams, bloggers
Support Phone Support 24/7 Live Support Online	Support Phone Support 24/7 Live Support Online
API Offers API	API Offers API
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $0/month The free tier includes email support for the first 60 days. You can create an account, import and sync your data, customize templates and emails, and use many of Klaviyo’s feature for free. You can send 500 emails maximum to up to 250 active profiles. You also get 150 SMS credits. You’ll be prompted to upgrade once you exceed that limit. Access the full Klaviyo platform plus exclusive AI-powered features and 24/7 support for as little as $20/month. Free Version Free Trial	Pricing $0/month The free version of OneSignal allows you to send push notifications to an unlimited number of mobile subscribers and up to 30K web push subscribers. Unlock paid features including in-app messaging. Plans start at $99/month, priced based on subscriber count. Free Version Free Trial
Reviews/Ratings Overall 4.5 / 5 ease 4.4 / 5 features 4.8 / 5 design 4.9 / 5 support 4.8 / 5 Read all reviews	Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 5.0 / 5 design 5.0 / 5 support 4.0 / 5 Read all reviews
Pros & Cons from Real Users Pros Klaviyo is one of the very software that ticks all the boxes for our customer relationship and marketing automation needs. It helped us to build highly engaging campaigns. It's analytics is very robust, gives us the ability to drop emails to the right subscriber. The user interface is visually clean and appealing. Klaviyo is perfect for any type of business. With it's easy integration with Shopify and automation for order fulfilment and abandoned checkouts. Simple to use interface with many robust features. Can be done at your own will, or have a team behind your email campaigns to maximize returns. Data feels secure and never downtime issues. A powerful email platform, their templates and starter flows are good to get started with initial email sequences. Their editor is pretty good and I like their integrations into Shopify for things like coupon codes, cart abandonment emails etc. Ease of implementing and laying Klaviyo to email marketing procedures was what I first liked. Sending thousands of outbound emails is another great aspect. Cons It supports less platform for integration as compared to other software. Templates can be hard to set up, but once you've learnt how to use the user interface, it can be worked through a breeze. It involves training heavily to get used to what Klaviyo can do. However, there are many training resources to help assist your email campaigns. Can sometimes be a little bit hard to use and setup, but once you understand the nuances it is fine. The platform is expensive based on newsletter subscriber volume as compared to other platforms, in some ways it may be best to hire someone to manage it to get the most value out of it. Pricing is a bit high, although our organization is able to cater for everything.	Pros & Cons from Real Users Pros OneSignal offers reliable platform to shoot notifications to the user base with few clicks. We have integrated the OneSignal to our CMS and we used it as an additional channel of communication for all promotional and transactional notifications. It offers web push, in-app push, split testing. OneSignal is very light weight Push message solution for Web, Mobile, In-App. It's very easy to use and execute different strategy from segmentation to A/B testing. It offer features as - Segmentation, A/B Testing, Setting up Automated messaging. High scalability Cons OneSignal is an evergreen push notification solution for us and I don't have any complaint. I'm very much satisfied with service offered by OneSignal. No Cons.
Training Documentation Webinars Live Online In Person	Training Documentation Webinars Live Online In Person
Company Information Klaviyo Founded: 2012 United States www.klaviyo.com	Company Information OneSignal, Inc. Founded: 2014 United States onesignal.com
Alternatives ActiveCampaign	Alternatives WonderPush
SalesTarget.ai SalesTarget LLC	Gravitec.net
Attentive Attentive Mobile	Kumulos
HubSpot CRM HubSpot	IBM Push Notifications IBM
Mailchimp Intuit Mailchimp View All	PushMaze View All
Categories Bulk SMS Business Text Messaging Campaign Management Plan, launch, and measure coordinated campaigns across channels—from a single canvas. Build audiences in seconds, generate on-brand content with Klaviyo AI, and schedule or trigger sends based on real-time behavior. Personalize offers, products, and timing per recipient. Collaborate with guardrails and approvals, then optimize with A/B tests, deliverability insights, and benchmarking. Unified reporting and attribution show what worked across email, SMS/RCS, WhatsApp, push, and more. Customer Data Platforms (CDP) Klaviyo Data Platform unifies marketing, commerce, and service data into a single, real-time customer profile. Get identity resolution, unlimited lookback segmentation, no-code transformations, custom objects, and open APIs—plus 350+ integrations and warehouse syncs. Activate insights instantly inside Klaviyo Marketing and Service: build segments, trigger flows, personalize content, and analyze performance without stitching tools together or waiting on batch jobs. Drag and Drop Email Builders eCommerce Marketing Email Marketing Drive immediate sales and lasting loyalty with data-driven email. Klaviyo pairs an intuitive editor and 160+ templates with real-time segmentation, predictive analytics, and dynamic product feeds. Deliver more to the inbox with reputation repair AI, guided warming, smart sending, and send-time optimization. Run fast A/B tests, personalize at scale, and measure everything with revenue-tied reporting and benchmarks. Built for ecommerce use cases and integrated with 350+ apps. Email Newsletter Email Personalization Go beyond batch-and-blast. Dynamically tailor products, offers, and content blocks using real-time profile data, browsing history, and purchase behavior. Predictive models set timing and cadence; AI generates on-brand copy and subject lines; show/hide logic and universal content keep templates flexible. Personalize every send—down to the individual—then validate with A/B tests, deliverability tools, and clear revenue reporting. Email Template Design Go-To-Market Lead Scoring Marketing Klaviyo is the AI-first B2C CRM that unifies marketing, service, analytics, and data so brands can grow faster without complexity. Orchestrate email, SMS/RCS, WhatsApp, mobile push, and on-site experiences from one platform. Real-time customer profiles and 350+ integrations power precise segmentation and 1:1 personalization. Built-in K:AI agents turn a URL into a marketing plan and ready-to-send campaigns, then keep optimizing. Launch quickly with 160+ templates and 80+ prebuilt flows, and prove impact with dashboards, testing, and benchmarks. Marketing Attribution See what really drives revenue with flexible, cross-channel attribution. Customize lookback windows, touchpoints, and filters—and apply changes retroactively for apples-to-apples comparisons. Pair last-click or multi-touch attribution with portfolio dashboards, cohort and funnel analysis, and benchmarks. Understand performance across email, SMS/RCS, WhatsApp, and push in one view, then act on insights with testing, recommendations, and AI-assisted optimization. Marketing Automation Automate entire lifecycles with multi-channel flows that react to live events—site activity, purchases, subscription changes, and more. Marketing Agent uses AI to craft your email marketing strategy, drafts content, and keeps your calendar full. Trigger messages on any channel, auto-test variants, and let predictive models inform timing, churn prevention, and next best action. Manage it all in one place with unified profiles so each automation stays accurate, on-brand, and performance-driven. Mobile Marketing Keep app users coming back with push, in-app messages, and coordinated journeys—all powered by unified data. Target precisely with real-time segments and predictive analytics; personalize creatives and CTAs; and trigger messages from live behavior. Manage silent pushes for background updates, and coordinate mobile with email, SMS, and WhatsApp for cohesive experiences. Build fast with an intuitive editor and templates; measure impact with unified, revenue-tied reporting. Personalization Deliver true 1:1 experiences—content, product, channel, and timing chosen per person. Klaviyo’s unified profile combines browsing, purchases, service interactions, and consent to fuel precise segments and individualized messages. Use predictive analytics (e.g., CLV, churn risk, next order date) and AI-powered recommendations to tailor every touchpoint. Personalization is native across email, SMS/RCS, WhatsApp, mobile, and web—no bolt-on CDP or nightly syncs required. SMS Marketing Build revenue and relationships with compliant, two-way SMS. Create data-driven segments in seconds, automate conversational flows, and personalize with unified profiles. Grow lists via smart, targeted forms; protect deliverability with a dedicated hub; and attribute sales accurately alongside email and mobile. Engage globally in 20+ countries and coordinate SMS with email, WhatsApp, and push from one platform. AI assists with copy, testing, and audience optimization.	Categories Email Marketing Mobile Content Management System Mobile Marketing Personalization Proactive Notification Push Notifications
Email Marketing Features A/B Testing Artificial Intelligence Auto-Responders CAN SPAM Compliance Customer Surveys Drip Campaigns Dynamic Content Event Triggered Email Image Library Landing Pages/Web Forms Mailing List Management Mobile Optimized Emails Reporting/Analytics Subscriber Management Template Management WYSIWYG Email Editor Mobile Marketing Features Channel Attribution Contextual Targeting Coupons Email Marketing Engagement Monitoring In-App Marketing Location-Based Marketing Push Notifications Text Messaging Text-to-Win Personalization Features A/B Testing Abandoned Cart Saver Account Based Marketing Behavioral Targeting Campaign Segmentation Content Analytics Contextual Targeting Customer Profiles Experience Management Recommendation Engine Website Personalization Show More Features Campaign Management Features Channel Management Contact Database Email Marketing Event Triggered Actions Lead Management Multi-Campaign Customer Data Platforms (CDP) Features Behavioral Analytics Campaign Management Customer Profiles Customer Segmentation Data Integration Data Matching GDPR Compliance Personalization Predictive Modeling Email Template Design Features A/B Testing Code From Scratch Drag & Drop Editing Image Library Import HTML Code Mobile-Friendly / Responsive Potential Issue Identification Premade Templates Proofing Reporting / Analytics Text Editor Theme Editor Marketing Attribution Features Attribution Modeling Audience Segmentation Conversion Tracking Cross-Channel Attribution Customer Journey Mapping Multi-Touch Attribution Predictive Analytics ROI Tracking Marketing Automation Features A/B Testing Analytics / ROI Tracking Artificial Intelligence Content / Blogging Platform Customizable CTAs Drip Campaigns Dynamic Content Landing Pages / Web Forms Lead Scoring Sales Intelligence Search Marketing Segmentation Social Marketing Website Visitor Tracking SMS Marketing Features 2-Way Messaging Artificial Intelligence Contact Management Mass Texting Message Personalization MMS Mobile Coupons Mobile Keywords Polls / Voting Reporting/Analytics Scheduled Messaging Shortcodes Text-to-Win eCommerce Marketing Features AB Testing Abandoned Cart Email Analytics / ROI Tracking Customer Data Profiles Dynamic Content Email Marketing Email Personalization Facebook Ads Google Ads Product Recommendations Push Notifications Retargeting Search Marketing Segmentation Signup Forms & Popups SMS Marketing Social Marketing Triggered Emails Website Visitor Tracking	Email Marketing Features A/B Testing Artificial Intelligence Auto-Responders CAN SPAM Compliance Customer Surveys Drip Campaigns Dynamic Content Event Triggered Email Image Library Landing Pages/Web Forms Mailing List Management Mobile Optimized Emails Reporting/Analytics Subscriber Management Template Management WYSIWYG Email Editor Mobile Marketing Features Channel Attribution Contextual Targeting Coupons Email Marketing Engagement Monitoring In-App Marketing Location-Based Marketing Push Notifications Text Messaging Text-to-Win Personalization Features A/B Testing Abandoned Cart Saver Account Based Marketing Behavioral Targeting Campaign Segmentation Content Analytics Contextual Targeting Customer Profiles Experience Management Recommendation Engine Website Personalization Show More Features Mobile Content Management System Features Data Synchronization Document Management File Sharing Mobile Capture Offline Access Permission Management Personalization Search Templates Version Control Push Notifications Features A/B Testing Analytics Campaign Segmentation Contextual Targeting Device Targeting Expiry Notifications Geo Targeting Mobile Notifications Notification Scheduling Visual Notifications Web Notifications
Integrations Axis LMS BI Book Easyflow Freshpaint Grouparoo Hightouch Integrately KonnectzIT Latenode Make Pipedream Quickwork ReturnPro Shift Simon AI Skypoint AI Platform Stackreaction TRIBUS Workers by Delos Zapier Show More Integrations View All 502 Integrations	Integrations Axis LMS BI Book Easyflow Freshpaint Grouparoo Hightouch Integrately KonnectzIT Latenode Make Pipedream Quickwork ReturnPro Shift Simon AI Skypoint AI Platform Stackreaction TRIBUS Workers by Delos Zapier Show More Integrations View All 75 Integrations
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