Cache files are a form of temporary digital data that accumulate as you use a phone, tablet, or computer. Cache is useful for optimizing system performance, doing so by 'designating' frequently ...

Android phones rarely slow down overnight. Performance usually erodes in small, frustrating steps as apps pile up temporary files, browsers hoard old images, and the system juggles more cached data ...

How to clear your iPad cache (and why it makes such a big difference) ...

The iPhone is renowned for its blazing speed, but as fast as an iPhone and iOS 26 may be, there are still situations where your device may begin to act sluggish or feel like it's underperforming.