Problems with push notifications

If you experience problems with push notifications, i.e., if incoming messages show up late or only when opening the app (and/or if you are unable to re-establish a connection to the desktop app or the web client), the reason usually lies in restrictions imposed by the device maker.

In such cases, the Threema app doesn’t have permission to be active in the background and/or to transmit data in the background. Please grant the required permissions as follows:

1. In Threema, navigate to “Settings > About Threema > Advanced options > Fix device configuration problems”
2. Select “Disable power restrictions” (if available), and follow the on-screen instructions
3. In “Fix device configuration problems,” select “Unused App settings.” Then, disable the option “Pause app activity if unused”

On Android 13 and 14, the “Adaptive Battery” option could also be the reason why messages show up late. To fix this, deactivate the option in the system settings under “Battery > Battery Saver > Adaptive Battery.”

Should the problem persist after making these adjustments, please follow the device-specific troubleshooting instructions.