If you’re running out of room on a device, there are usually three things which are taking up the space you need.

The first is videos. Videos, especially high-quality ones, use lots of memory.

The second is high-quality pictures.

A single picture won’t take up much space. But if you have thousands of them, it starts to add up.

Finally, 3D games and apps are a common culprit.

Some apps and games might only be a few megabytes – which is very small to a computer..

Others, though, can take up thousands of times more room.