Communities like r/LegacyJailbreak often host verified IPAs or point to archives like the Internet Archive where legacy versions are stored.
Some popular YouTube IPA files for iOS 12 include: youtube ipa for ios 12
The web app:
YouTube IPA for iOS 12, sideload YouTube on iPhone 6, YouTube 15.49.6 IPA, uYou iOS 12, legacy iOS apps. Sideloading an older YouTube IPA allows you to
An IPA (iOS App Store Package) is the installation file for iOS apps. Sideloading an older YouTube IPA allows you to run a version of YouTube that was built for iOS 12 — even if Apple or Google no longer support it. Apple Support Community Method 1: App Store (No
. You can either download the last compatible version from your App Store purchase history or sideload a modified IPA file to bypass "Update Required" locks. Apple Support Community Method 1: App Store (No Computer Needed)