
This software can easily and quickly back up up to 12 kinds of files between iOS devices, computer and iTunes in simple clicks. If you want to back up downloaded videos from YouTube, music from Spotify, or photos in Photos app, you can use Leawo iTransfer. Obviously, iTunes is not a wise choice, because iTunes can't back up purchased and downloaded data from third-party apps. But before large file cleanup, you can first back them to computer. You can go to the Download section of each app and delete these videos. For example, if you just tap the Download button in YouTube, you might've downloaded 10 GB of offline videos. In fact, music, videos and photos are the most space-hogging files. Part 4: How to Clean Junk Files and Cookies on iPhone by Deleting Large Files? Tap it and tap Delete App for thorough cleanup.

Drag the slider from left to right to turn off your iPhone.For an iPhone with a Home button, press and hold the Power button until the power off slider appears.

