To make sure you always have the latest version of your apps, we recommend turning on automatic updates. See how to do this on an iPhone or Android device.
Clearing a mobile app’s cache
What’s a cache?
A cache is a memory where temporary information is stored when visiting a website or application. It speeds up display loading on subsequent visits, thus improving the user experience.
However, the cache occasionally stores data that conflicts with new information generated by a site or app. The cache then needs to be cleared to resolve the issue.
Android
Open the Settings app.
Go to Apps.
Select the app whose cache you want to clear.
Go to the Storage tab.
Tap Clear cache.
iOS (Apple)
To clear the cache of an app on an Apple mobile device, simply uninstall and reinstall the app.