Wire uses Firebase Cloud Messaging (former Google Cloud Messaging) by default as it is the Google requirement. If you, as a developer, roll out your own solutio

Wire uses Firebase Cloud Messaging (former Google Cloud Messaging) by default as it is the Google requirement. If you, as a developer, roll out your own solution, you simply get banned on Google Play. Claimed reason is that FCM/GCM delivers all your messages in batch, so it saves your phone power [0]. It is doubtful because your phone may enter Discontinuous Reception (DRX) state, so your cellular operator will deliver messages in batch anyway, but whatever. I think it is Google pushing developers to use their push servers while avoiding antitrust laws. GitHub message about fallback to WebSocket you are referring to is here: [1]. So you can remove all Google services from your phone and install APK, it will still work, but now Wire server pings your phone whenever it wants. TLDR on the thread is that APK is not uploaded to F-Droid due to dependency (not really) on Google services. [0] https://developer.android.com/training/monitoring-device-state/doze-standby.html https://developer.android.com/training/monitoring-device-sta... [1] https://github.com/wireapp/wire-android/issues/5#issuecomment-251411885 https://github.com/wireapp/wire-android/issues/5#issuecommen...