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.

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 ...

Adam Benjamin has helped people navigate complex problems for the past decade. The former digital services editor for Reviews.com, Adam now leads CNET's services and software team and contributes to ...