Your iPhone apps should update automatically, but if they aren't, you can check for updates manually through the App Store.
To clear Facebook cache on an iPhone, you can head into the app's "Settings & Privacy" menu to clear browser cache, and ...
Your iPhone's cache memory helps keep things zippy, but it can slow down as unused and corrupt files accumulate. Fortunately, a regular spring clean can help.
Fix iPhone battery drain after iOS 26 update with tips like updating iOS, restarting, managing apps, enabling Low Power Mode, ...