App cache is similar to browser cache.
It’s small bits of information stored to speed up your experience using an app. However, there may be times when an app suddenly closes or stops responding altogether. Problems with cached data could be the culprit.
Clearing cache is a quick and easy way to free up space and (hopefully) fix a misbehaving app. Clearing app cache will not delete app data like account information.
Here’s how to clear the app cache:
1. Go to the Settings menu on your device.
2. Tap Storage.
3. Tap Internal Storage under Device Storage.
4. Tap Cached data.
5. Tap OK when a dialog box appears asking if you’re sure you want to clear all app cache.
Clearing app cache will not delete app data like account information. App data, like account information, can be deleted from the same menu – proceed with caution if you decide to do so.
Note: Phones without SD card storage will not be given a choice to select between internal storage or SD card as shown in the above screenshots.