The IPA version is too old. You must find a newer version of the YouTube IPA that still supports iOS 12. Conclusion
The IPA version is likely too new or too old. Try downloading a different, older YouTube IPA version. youtube ipa for ios 12.5.6
or older is generally compatible with iOS 12, though many users search for patched versions like "uYou" to restore functionality. Jailbreak Fix : If your device is jailbroken, you can use the "DisableYouTubeUpdates" "YTABConfig" The IPA version is too old
Method 1: Sideloading via AltStore or Sideloadly (No Jailbreak Required) Try downloading a different, older YouTube IPA version
Once completed, the YouTube app will appear on your home screen. Alternative Method: The App Store "Purchase History" Trick
You can install the IPA file using either a computer (unjailbroken) or directly on the device if you are jailbroken.
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