iPhone Music YouTube Download (Cache) App

[BrandonK123]

Hey guys, all of my friends have an app that they can cache or download YouTube vids so that they can watch their videos or listen to music offline using no data. Yet here I am having looked through just about the entire App Store looking for an app to do these things, research tells me that these apps are released but quickly taken down. Can anyone please help me to find one of these apps as of recent if so would be greatly appreciated (iPhone 6, latest ios)

Thank you in advance for any and all information.

 

[bignastyid]

We are not going to help you pirate content from Youtube.

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