@niklas_ngenic Pusher services has nothing to do with CGM or APNS it's more an API to manage your events like used for:
- Multiplayer gaming.
- Badge notification.
- etc ...
Regarding to the plugin cordova-push-plugin, this is what you need, I provided some instructions about how to setup with Android GCM here: https://forum.ionicframework.com/t/ionic-is-not-defined-when-using-ionic-push/39840/3
Hope it helps!