The official Android app for the AlertR alarm and monitoring system to receive push notifications. In order to use this app, you need to register an account at https://alertr.de and follow the setup instructions. It can also be used with the standalone push notification tool Lightweight-Push (https://github.com/sqall01/lightweight-push).
The source code of this app can be found under: https://github.com/sqall01/alertR-Push-Android
If you encounter any problems, please open an issue under: https://github.com/sqall01/alertR-Push-Android/issues
Please deactivate all battery optimization or power saving settings of your Android system for this app. Since these settings shutdown services after a while, push notifications may not reach you.