What clearing cache does and why you might need to
Cache is temporary data that apps store on your phone to load faster next time you open them. Over time, this cache can build up and take up storage space, or occasionally cause an app to behave oddly. Clearing cache removes this temporary data without deleting your actual files, passwords, or account information.
You might clear cache if an app is running slowly, freezing, or crashing. You might also clear it to free up storage space when your phone is running low. The process is safe — apps will simply rebuild their cache the next time you use them. Most people find they need to clear cache every few months, though heavy phone users may do it more often.
Key Takeaways
- You can clear cache for individual apps through Settings, or clear all app cache at once through Storage settings.
- Clearing cache removes temporary files but keeps your login information, saved data, and personal files intact.
- The exact steps vary slightly depending on your Samsung model and Android version, but the Settings menu is always the starting point.
- If an app continues to malfunction after clearing its cache, clearing the app's data (a separate step) may be necessary.
- Clearing cache typically frees up between 100 MB and several gigabytes of space, depending on how many apps you use and how long it has been since you last cleared it.
Clear cache for a single app
This method works when one specific app is slow or misbehaving. Open Settings and tap Apps. Find the app you want to clear cache for and tap it. Tap Storage, then tap Clear cache. The button may also say Cache depending on your Samsung model.
The app will continue to work normally — you will not lose any saved progress, login information, or files. The next time you open the app, it will rebuild its cache automatically. This usually takes just a few seconds and happens in the background without you noticing.
Clear cache for all apps at once
If you want to free up storage space across your entire phone, you can clear cache for every app in one action. Open Settings and tap Storage. Tap Cache or Cached data (the exact wording depends on your Samsung model). A confirmation message will appear — tap Delete or Clear.
This removes temporary files from all apps simultaneously. Your phone may take a few moments to complete the process. After it finishes, you will see how much storage space was freed up. This is often the fastest way to reclaim space if your phone is running low.
Clear cache through the Device Care menu
Newer Samsung phones include a Device Care tool that can clear cache as part of general phone maintenance. Open Settings and tap Device care or Device maintenance. Tap Storage, then tap Clean or Optimize. This will remove cache files along with other temporary data.
Device Care also shows you how much storage you are using and which apps are taking up the most space. This can help you decide whether to uninstall apps you rarely use. The Device Care approach is useful if you want a full picture of what is consuming your phone's storage, not just cache.
The difference between clearing cache and clearing data
Clearing cache removes only temporary files. Clearing data removes temporary files, saved settings, and login information — essentially resetting the app to its first-run state. You will have to log back in to the app and reconfigure any preferences you had set up.
Start by clearing cache first. If the app still has problems after that, then clear data. To clear data, go to Settings > Apps, select the app, tap Storage, and tap Clear data instead of Clear cache. Be aware that clearing data is more disruptive, so only do this when cache clearing alone has not solved the problem.
What to do if cache clearing does not fix the problem
If an app is still slow or crashing after you clear its cache, try clearing the app's data as described above. If that does not work, uninstall and reinstall the app — this gives you a completely fresh version from the Google Play Store. Reinstalling often fixes problems that cache and data clearing cannot.
If multiple apps are running slowly, the problem may not be cache. Your phone might be low on storage space, running too many background apps, or need a restart. Try restarting your phone first, then check how much free storage you have left in Settings > Storage. If you have less than 1 GB free, uninstalling apps or files you no longer need will improve performance noticeably.
Frequently Asked Questions
Will clearing cache delete my photos or messages?
No. Cache is temporary data stored by apps, separate from your photos, messages, and files. Clearing cache will not affect any of your personal data or media.
How often should I clear cache?
There is no set schedule. Clear cache when your phone is running low on storage, when an app is misbehaving, or as part of regular maintenance every few months. Clearing cache regularly can help keep your phone running smoothly.
Can I clear cache without going into Settings?
Some Samsung phones have a quick cache-clearing option in the Device Care app, which you can access from your home screen or app drawer. This is faster than going through Settings, though both methods do the same thing.
What if I cannot find the Clear cache button?
The button location varies by Samsung model and Android version. If you cannot find it under Apps > Storage, try Settings > Storage > Cache instead. You can also search for "cache" in Settings using the search bar at the top.
Does clearing cache slow down my apps?
No. Apps may take a moment to load the first time after you clear cache because they need to rebuild it, but they will not be permanently slower. In fact, clearing cache often makes apps run faster by removing corrupted or outdated temporary files.