To get YouTube running on iOS 10.3.4 (common for devices like the iPhone 5 or iPad 4), you typically need to "patch" an existing version of the app to bypass "Update Required" errors
You can find community-sourced IPA files that have been modified to bypass the version check. Archive.org : You can find collections such as All YouTube IPA's which host various versions for legacy devices. Google Drive Links youtube ipa for ios 1034 patched
What is the YouTube IPA for iOS 10.3.4 patched? To get YouTube running on iOS 10
If you don't want to manually edit files, you can find pre-patched IPAs on community repositories like the Internet Archive or LegacyJailbreak's IPA archives. iPhone 5 (GSM and Global) iPhone 4s (CDMA and GSM)
Here’s how it works:
⚠️ Important notes before starting
Method 2: Using AltStore