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Best Alternatives to OneSignal
2 options ranked by Trust Score · April 2026
About OneSignal
All-in-one customer messaging platform for push notifications, in-app messages, email, and SMS. Industry-leading free web push tier makes it the go-to for early-stage products.
Push NotificationsIn-App MessagesEmailSMS
Top OneSignal Alternatives
Novu
Trust Score 79 · Good
79
Open-source notification infrastructure for developers. Unify in-app, email, SMS, push, and Slack notifications with a single API, workflow engine, and self-hostable dashboard.
TypeScriptOpen SourceFree tier
Free tierView profile
Firebase Cloud Messaging
Trust Score 44 · Caution
44
Google's free cross-platform push notification service. Supports iOS, Android, and web push notifications. Completely free with no monthly limits — ideal when you need reliable push without third-party costs.
Push NotificationsMobileWeb Push
Free tierView profile
Side-by-side comparisons
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Trust Scores are calculated weekly from real-world signals — npm/PyPI downloads, GitHub commits, stars, and Stack Overflow activity. Higher is more actively maintained and widely adopted.
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