Curated
Courier
Notification API for sending messages across channels
Push MessagingNotification API and routing
Alternatives to OneSignal
12 tools like OneSignal, chosen by what they do. About OneSignal
Free trial
Customer.io
Customer engagement platform for messages across channels
Push MessagingAutomated messages for apps
Curated
Airship
Mobile-first customer experience and messaging platform
Push MessagingMobile engagement platform
Curated
Knock
Notification infrastructure for in-app, email and push
Push MessagingNotification infrastructure
Open source
Novu
Open source notification infrastructure for apps and agents
Push MessagingOpen source notification stack
Open source
ntfy
Send push notifications to your phone with simple HTTP requests
Push MessagingSimple push by HTTP
Freemium
Pusher
Hosted APIs for realtime features like live updates and chat
Push MessagingRealtime channels and push
Curated
Sendbird
Enterprise APIs for in-app chat, calling and AI customer service
Push MessagingIn-app chat and calls
Freemium
Stream
SDKs and APIs for in-app chat, activity feeds and video
Push MessagingChat and activity feed SDKs
Open source
Parse Platform
Open source backend server for mobile and web apps
Backend DataOpen source backend framework
Freemium
Brevo
Email, SMS and CRM tools for marketing and transactional messages
Email MarketingEmail, SMS and CRM
Free trial
