OneSignal
Customer engagement platform with APIs for push notifications, email, SMS, and in-app messaging.
OneSignal is listed in Communication.
Key metrics
10k/mo Rate limit Free tier: unlimited mobile push; email limited to 10,000 sends/month.
Gotchas
No gotchas documented yet. Contribute one if you know a constraint we missed.
Labels
- Key required
Key required
Requires an API key (free to obtain) before use.
push notifications email sms in-app