What clearing cache does and why you might need to
Cache is temporary data that apps store on your phone to load faster the next time you open them. When you clear an app's cache, you delete that temporary data but keep your account information, settings, and saved files intact. Clearing cache can free up storage space, fix an app that is running slowly or crashing, or remove data from an app you no longer use.
Most Android users never need to clear cache manually — your phone manages it automatically over time. But if an app is misbehaving, or you want to reclaim storage space quickly, clearing cache is a safe first step that takes less than a minute per app.
Key Takeaways
- Clearing an app's cache removes temporary data but keeps your login information and saved files, so you will not lose your account or progress.
- You can clear cache for individual apps through Settings > Apps, or clear cache for all apps at once through Settings > Storage.
- Clearing cache is safe and does not harm your phone or the app — the app will rebuild its cache the next time you use it.
- If an app continues to crash or freeze after clearing cache, the next step is to clear the app's stored data or uninstall and reinstall it.
How to clear cache for a single app
Open Settings on your Android phone. Scroll down and tap Apps (on some phones this is called Application Manager or Installed Apps). Find the app you want to clear cache for and tap its name.
Tap Storage or Storage and Cache. You will see two buttons: Clear Cache and Clear Data. Tap Clear Cache only — do not tap Clear Data unless you want to delete your login information and saved files for that app. The cache will clear immediately, and you are done.
If you do not see a Storage option, the app may not have any cache to clear, or your phone's version of Android handles it differently. Try opening the app and looking for a settings or preferences menu inside the app itself — many apps let you clear their own cache from within.
How to clear cache for all apps at once
Open Settings and tap Storage (on some phones this is Device Storage or Internal Storage). Scroll down and look for Cache or Cached Data. Tap it, then tap Clear or Delete. Your phone will clear the cache for every app in one action.
This approach is faster if you want to free up space across your whole phone, but it does not let you pick and choose which apps to clear. If you only want to clear cache for one or two apps, the single-app method above is more precise.
What happens after you clear cache
The app will work normally the next time you open it. It may take a few extra seconds to load because it is rebuilding its cache from scratch, but this is temporary. After you use the app a few times, it will run at normal speed again.
Your login information, saved files, photos, messages, and any other data you created in the app remain untouched. Clearing cache only removes the temporary files the app uses to speed itself up — it does not delete anything you care about.
When to clear cache versus clear data
Clear Cache removes temporary files only and is always safe to do. Clear Data removes everything — temporary files, login information, saved settings, and any data the app stored. Use Clear Data only if you want to start fresh with an app, or if clearing cache alone did not fix the problem.
If you clear data, you will need to log back into the app and set it up again from the beginning. For most problems — slow performance, crashes, or freezing — clearing cache is enough and you should try that first.
Clearing cache when your phone is running out of storage
If your phone is almost full, clearing cache across all apps can free up several hundred megabytes or even a gigabyte, depending on how many apps you use. Go to Settings > Storage and look at what is taking up the most space. If Cached Data is listed as a separate item, clearing it will give you the fastest result.
If you still need more space after clearing cache, the next step is to delete apps you no longer use, move photos and videos to cloud storage, or clear data from apps that store a lot of files — like your browser's download history or a messaging app's media folder. Your phone will also warn you when storage is critically low and offer to clear cache automatically.
Troubleshooting if the app still does not work
If an app still crashes or freezes after you clear its cache, try clearing its data instead. Go back to Settings > Apps, find the app, tap Storage, and tap Clear Data. This removes everything and forces you to log back in, but it fixes problems that cache clearing alone cannot solve.
If clearing data does not help, uninstall the app completely and reinstall it from the Google Play Store. This gives you a completely fresh copy of the app. Before you uninstall, make sure you know your login information for that app, because you will need it to sign back in.
Frequently Asked Questions
Will clearing cache delete my photos or messages?
No. Clearing cache removes only temporary files that the app uses to run faster. Your photos, messages, login information, and anything else you created or saved in the app stays on your phone. If you want to delete those things, you have to use Clear Data instead, which is a separate option.
How often should I clear cache?
You do not need to clear cache on a schedule. Android manages cache automatically, and clearing it manually is only necessary if an app is misbehaving or you need to free up storage space right away. Most people never need to clear cache manually.
Does clearing cache make my phone faster?
Clearing cache can make your phone feel faster if storage space was very low, because your phone will have more room to work. But if you have plenty of storage, clearing cache will not noticeably speed up your phone. The main reason to clear cache is to fix a broken app or free up space.
What is the difference between cache and data?
Cache is temporary files that an app creates to load faster — things like images it downloaded or pages it visited. Data is everything else: your login information, settings, saved files, and anything you created in the app. Clearing cache is safe and reversible; clearing data deletes your account information and settings.
Can I clear cache for an app I have not used in months?
Yes, it is completely safe. Clearing cache for an unused app will not harm it or your phone. The app will work normally the next time you open it. If you do not plan to use the app again, uninstalling it will free up more space than clearing cache alone.