On a Pixel 4a with 5G an app that crashes, freezes or closes by itself usually points to storage, memory, an out-of-date app or the age of the phone's software. Start with the app itself: open Settings, Apps, choose it, tap Storage and cache and Clear cache, then, if it still fails, Clear storage, which signs you out and removes local data, so make sure what matters is backed up. Update the app in the Play Store, since developers retire support for old Android versions, and an app that requires a newer version than your phone's final Android release will crash or refuse to open.
The checks in more detail
Check Settings, System, System update for the latest patch, since the Pixel 4a 5G reached the end of its support years ago and may not get new Android releases. Restart the phone, as many crashes follow days without a restart. The 4a 5G has 6 GB of memory and 128 GB of storage, and a full or almost full storage makes apps crash, so open Settings, Storage and free up several gigabytes, using the Free up space tool. Close apps you are not using.
Boot into Safe mode by holding the power button and long-pressing Power off, and see whether the problem stops: if it does, a third-party app is the cause, and you can remove the most recent ones. Android System WebView and Google Play services are updated through the Play Store, and an out-of-date version makes web-based apps crash, so update both. If one app crashes after an update, clear its cache and, if available, uninstall the update or the app and reinstall it. Check the app's reviews for reports of crashes on older phones. If every app crashes and the phone also reboots, back up and do a factory reset, then test before restoring.
Battery wear can cause sudden shutdowns that look like crashes. If problems persist, the phone may be too old for the apps, and replacement is the practical fix. If a banking or work app refuses to run, check whether it needs a security patch level or a minimum Android version that your phone no longer meets, since many such apps block older devices on purpose for safety. The developer's support page lists the minimum version, and if your phone falls short, using the service in a web browser may work as an alternative until you replace the phone.
Differential
Likely causes of “Google Pixel 4a (5G) app keeps crashing, freezing or will not open”, and how to tell them apart
- 1
A corrupt cache
What separates it One app closes
How to confirm Clear its cache, then storage
- 2
An app that needs a newer Android
What separates it It crashes or will not open
How to confirm Update it, or use an older version
- 3
Full storage
What separates it Many apps crash
How to confirm Free several gigabytes
- 4
A third-party conflict
What separates it Crashes stop in Safe mode
How to confirm Remove recent apps
- 5
An outdated WebView or Play services
What separates it Web-based apps crash
How to confirm Update both in the Play Store
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which apps crash
- Whether Safe mode helps
- The free storage
- The Android and patch level
Try in this order
0 of 6 completedClear the app's cache
ReversibleThen storage.
Update the app
ReversibleAnd Play services.
Free storage
ReversibleSeveral gigabytes.
Boot into Safe mode
ReversibleTo test.
Remove recent apps
ReversibleOne by one.
Factory reset
ReversibleAs a last step, after a backup.
Model-specific
What is true of this model and not of its siblings
- Old Android
- Newer apps may not support it.
- Storage
- Keep several gigabytes free.
Stop boundary
When this stops being a self-service repair
- !If every app crashes after a factory reset, the phone may be failing
- !If an app no longer supports the phone, replace the phone or the app
- !Back up first
Evidence ledger
Sources behind this answer
Storage, Free up space and Smart Storage.
Screen protectors, Safe mode and restarts for touch faults.
Mobile data, SIM and network resets.
Exact questions
Common questions
Why do apps crash on my Pixel 4a 5G?+
A cache, storage or the age of its software.
Does Safe mode help?+
It rules out third-party apps.
Is the phone still supported?+
Check the last patch.
When should I replace it?+
If apps no longer support its Android.