: For better compatibility on some iOS 5 builds, sideloading YouTube 1.0 IPA is often recommended.
: If you have previously "purchased" YouTube on your Apple ID, you can go to the Purchased tab in the App Store on your iOS 5 device. When you tap to install, iOS will ask if you want to download the last compatible version . How to Make YouTube Work in 2024+ youtube ipa for ios 511
Official repositories no longer host compatible versions, but you can find archived files through community projects: : For better compatibility on some iOS 5