When an iPhone suddenly refuses to install a new app or take another photo, the culprit is often a mysterious bar in Settings labelled “System Data.” Instead of music, photos or apps you recognise, ...

Your iPhone may have low storage because it's been consumed by System Data, which can potentially consume all available capacity. Here's how to regain space when things get too bloated to function.

If you are struggling with not enough storage and trying to make more space on your Mac, Apple helpfully outlines ways to save space and shows some mysteriously named elements taking up storage space.