Clear app caches
See which apps keep the most cached data, and use Android's own tools to clear it.
A cache is data an app keeps to load faster next time: image thumbnails, downloaded previews, map tiles. Clearing it frees space and loses nothing important: you stay signed in and your settings stay. The app rebuilds the cache as you use it, so the space slowly fills again.
Before you start
The App cache screen needs usage access to read other apps' cache sizes. If it shows See which apps hoard cache, tap Allow usage access and turn it on for SpaceSweep. See Permissions.
The three ways to clear
Trim caches
Tap Trim. SpaceSweep asks Android to delete cached files across all apps at once. Android clears the biggest caches first and may leave small ones alone. SpaceSweep then reports how much Android cleared, or that it found nothing it was willing to remove right now.
Clear app cache folders
On Android 11 and later, tap Clear next to Clear app cache folders. Android shows its own confirmation, then empties the cache folders every app keeps in shared storage. This needs all-files access. On older Android versions SpaceSweep says it is Not available on this version of Android.
Clear one app
Under Apps by cache size, each app shows its cache and data size. Tap Clear next to an app:
Android opens that app's settings page.
Choose Storage (on some phones Storage & cache), then Clear cache.
Press Back. SpaceSweep shows how much you freed.
WARNING
On the app's storage page, choose Clear cache, not Clear storage or Clear data. Clearing storage deletes the app's data, such as downloads, offline files and sign-ins, and cannot be undone.
Turn on System apps to include apps that came with the phone.
Why there is no single button for everything
Since Android 6, only system apps may delete another app's private cache directly. Cleaner apps that claim to clear every cache with one tap either drive the Settings app through accessibility automation or do not really clear anything. SpaceSweep uses only the routes Android supports: Trim, the system's clear-cache-folders dialog, and each app's settings page.