Hi there! I understand the Substack app on your Android device turns on but immediately shuts down. Let's get to the bottom of this together.

To start, could you tell me if this happens every time you open the app? Also, have you tried any fixes so far, like restarting your phone or reinstalling the app?

In the meantime, here's a step-by-step approach for this issue on your Android 10 device:

1. Force Stop and Clear Cache
- Go to your device's Settings > Apps > Substack.
- Tap Force Stop, then tap Storage, and select Clear Cache.
This removes temporary files that might cause crashes without deleting your data.

2. Reboot Your Phone
Restarting your device can refresh system resources and solve minor glitches.

3. Reinstall the Substack App
- Uninstall the app fully.
- Go to the Google Play Store and install the latest version.
Sometimes, reinstalling clears corrupted files causing startup crashes.

4. Check for Android System Updates
- Go to Settings > System > Software Update and make sure your Android 10 is up-to-date with security patches and fixes.

5. Check Network Connection and Disable VPN if Any
Sometimes VPNs or unstable Wi-Fi networks can interfere with app startup.

If the problem still persists after these steps, please let me know. We might then explore if there are any known issues with the current Substack app version on Android 10 or if we need to dig deeper into device logs or account issues6 9.

Are you comfortable trying these steps? Let me know how it goes!