By default, Threema for Android uses Google’s push service to notify users of incoming messages when the app is in the background. If you prefer not to rely on Google services, Threema Push is available as an alternative.
For more information about Threema Push, please refer to this blog post.
Activate Threema Push
To activate Threema Push, navigate to “Threema > Settings > About Threema > Advanced options,” and tap “Use Threema Push.” (If no other push service is available, Threema Push will be used automatically.)
Hide persistent notification and icon in status bar
After you have enabled Threema Push, a notification entitled “Threema Push” along with an icon in the status bar will appear. To remove both, disable the “Threema Push” notification channel: Navigate to Android’s notification settings for Threema (e.g., “Settings > Apps > Threema > Notifications”), and turn off “Threema Push.”
Requirements
In order for Threema Push to fetch new messages in the background, it is required that “power restrictions” are disabled, while “background data” is enabled (cf. dontkillmyapp.com).
