Android app to send notifications from Nextcloud without using GCM(Google cloud messaging)

GNU General Public License v3.0

NextcloudServices

Google Cloud Messaging for application servers implemented using the Go programming language.

MIT License

Apache License 2.0

go-gcm

Register device for GCM push notifications services

react-native-push-with-gcm

react-native-gcm-android

Way to set heartbeat interval and the User receive PushNotifications from GCM. Based on related post in Google Forums about HeartBeat problem.

AndroidHeartBeatFixer

A server-side library for sending Push Notifications to iOS (iPhone/iPad APNS), Android (C2DM and GCM - Google Cloud Message), Windows Phone, Windows 8, Amazon, Blackberry, and (soon) FirefoxOS devices!

Other

PushSharp

[WARNING: NOT MAINTAINED] Android system notifications for React Native. Supports push notifications with GCM integrated. Another push-notification solution on Android is https://github.com/zo0r/react-native-push-notification, it features on providing the same API on iOS and Android, while this one supports more notification features on Android.