Note: If the app opens but shows a "server error," you will need to apply the "Version Spoofing" fix below. Web Browser Shortcut (Recommended)
If your device is jailbroken (e.g., using Phoenix or Pangu9): Youtube Ipa For Ios 9.3.5
For a visual walkthrough on how to trigger the 'last compatible version' download from the App Store, check out this guide: Note: If the app opens but shows a
file is installed. To use YouTube on a legacy device like an iPad 2 or iPhone 4s, you must use specific workarounds to bypass the "Update Required" lockout. How to Install and Use YouTube on iOS 9.3.5 Youtube Ipa For Ios 9.3.5
How to Download the Youtube app on Older iPad (ios 9.3.5) (NO HACKING)