Android app won't open or keeps crashing
The app is installed but will not open, crashes or stops responding. Start with a restart and updates before removing its data.
Try this first
1 quick checks · ~4 min
Step-by-step solutions
Restart and try the app again
Save what you can before closing other apps.
Restart the phone normally and open the affected app to check the result.
If it fails again, note whether it closes at launch or during a specific action. That distinction helps its developer.
Update the app and Android
Test after applying updates.
Check Google Play for an app update and Settings for a system update. Save work and follow the installation prompts.
Repeat the failing action. If only that app still fails, keep troubleshooting it rather than resetting the whole phone.
Advanced checks
Continue if the earlier steps did not help. Read each procedure’s precautions first.
Stop only the affected app
Stopping an app is different from clearing storage.
In Settings, open the correct app’s information and use Force stop if available. Reopen it.
Before cache or storage troubleshooting, check the app’s official guidance and distinguish clearing cache from clearing data. Do not confirm data removal as though it were a restart.
Reinstall only after protecting data
Check account access and app availability.
Confirm you can download it again and that important data is backed up or synced in a recoverable form.
If the problem persists and you choose to reinstall, uninstall that app and obtain it again from Google Play. Test before restoring further changes.
Still not working?
If only that app fails, give the developer the version, triggering action and steps tried without private data. If the whole device fails, switch to freezing or restart troubleshooting according to what you observe.
Sources
Documentation behind this guide. Editorial recommendations are identified separately.
Source review: . A documentation review, not a physical hardware test.
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View solution