What cache is and why deleting it helps

Cache is temporary data that Android apps store on your phone to load faster the next time you open them. When you watch a video, browse a website, or use a map app, pieces of that content get saved locally so the app doesn't have to read everything again. This speeds things up, but cache files pile up over time and can take up several gigabytes of storage.

Deleting cache won't erase your photos, messages, or login information — those live in a different part of your phone's storage. Cache is purely temporary, and apps will rebuild it automatically as you use them. The main reason to delete cache is to free up space when your phone is running slow or storage is nearly full.

You have two options: clear cache for individual apps one at a time, or clear all app cache at once through your phone's settings. The method you choose depends on whether you want to target specific apps or do a broader cleanup.

Key Takeaways

  • Cache is temporary data apps store to load faster, and deleting it frees storage without removing your photos, messages, or account information.
  • You can clear cache for one app at a time through Settings > Apps, or clear all app cache at once through Settings > Storage.
  • The exact menu names vary slightly between Android versions and phone manufacturers, but the process is the same on all Android phones.
  • After clearing cache, apps will rebuild it as you use them, so you may notice slightly slower loading the first time you open each app.

Clear cache for a single app

Open Settings on your phone. Scroll down and tap Apps (some phones call this Applications or App Management). Find the app you want to clear cache for — you can scroll through the list or use the search icon at the top. Tap the app name to open its details page.

On the app details page, look for a button labeled Storage or Storage and Cache. Tap it. You will see two options: Clear Cache and Clear Data. Tap Clear Cache only — do not tap Clear Data, which will erase your login information and settings for that app. A confirmation message will appear saying the cache has been cleared.

Repeat this process for any other apps where you want to clear cache. This method is useful if you know which apps are taking up the most space, or if you want to keep cache for apps you use frequently.

Clear cache for all apps at once

Open Settings and tap Storage (on some phones this is under Device Care or System). You will see a breakdown of what is using space on your phone — apps, photos, videos, and other files. Look for an option called Cached Data, Cache, or Temporary Files. Tap it.

A confirmation dialog will appear asking if you want to delete all cached data. Tap Delete or Clear. This removes cache from every app on your phone at once. The process takes a few seconds, and you will see a message confirming the space has been freed.

This is the faster route if you want a quick storage cleanup without going through individual apps. You will typically free between 500 megabytes and 2 gigabytes, depending on how long it has been since you last cleared cache.

Where to find cache clearing on different Android versions

Android 13 and newer: Open Settings, tap Storage, then look for Cached Data or Other Apps. The exact wording depends on your phone manufacturer.

Android 11 and 12: Open Settings, tap Storage, scroll down, and look for Cached Data or Temporary Files. On Samsung phones, this may be under Device Care instead of Storage.

Android 10 and earlier: Open Settings, tap Storage, then Cached Data. On some older phones, you may need to go through Apps and clear cache individually for each app.

If you cannot find the option in the location described, try searching for "cache" in your phone's Settings search bar — most Android phones have a search icon at the top of Settings that will take you directly to the right menu.

What happens after you clear cache

Apps will rebuild their cache automatically as you use them. The first time you open an app after clearing cache, it may load slightly slower because it has to read fresh data. After that, performance returns to normal as the cache rebuilds.

You will not lose any saved passwords, login information, or personal settings. Apps will remember which accounts you are signed into and your preferences. Only the temporary files are deleted.

If you clear cache regularly — once a month or when storage is running low — you can keep your phone running smoothly without ever running out of space. Some people set a reminder to do this alongside other phone maintenance tasks.

When to clear cache versus when to clear data

Clear Cache when you want to free up storage but keep your app settings and login information. This is safe to do anytime and has no downside except slightly slower loading the first time you open each app.

Clear Data when an app is crashing or behaving strangely, and you want to reset it completely. This erases everything — your login, your settings, your saved preferences — and the app will feel brand new the next time you open it. Only do this if an app is broken and clearing cache did not fix it.

If you are just trying to free up storage space, always choose Clear Cache, not Clear Data. Clearing data is a troubleshooting step, not a routine maintenance task.

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 personal files. Clearing cache only removes temporary files that apps use to load faster. Your actual data stays on your phone.

How much storage will I free up by clearing cache?

It depends on how long it has been since you last cleared cache and which apps you use most. Typically you will free between 500 megabytes and 2 gigabytes. If you have not cleared cache in months, you may free more. Check your Storage settings before and after to see the exact amount.

Can I clear cache automatically on a schedule?

Android does not have a built-in automatic cache clearing feature, but some phone manufacturers include this in their device care apps. Samsung phones, for example, have a Device Care app that can clear cache on a schedule. Check your phone's built-in apps to see if this option is available.

What if I clear cache and my phone still runs slow?

Slow performance can come from other sources besides cache — too many apps running at once, a full storage drive, or an app that is using a lot of memory. If clearing cache does not help, try restarting your phone, uninstalling apps you no longer use, or checking which apps are using the most battery and storage in your Settings.

Is it safe to clear cache for system apps?

Yes. System apps like Chrome, Gmail, and Maps can have their cache cleared safely. You will not break anything by clearing cache for any app on your phone. The worst that can happen is that the app loads slightly slower the next time you open it.