Use mobile web:
To install the YouTube IPA file on your iOS device, you will need to use a tool like Cydia Impactor or AltStore. These tools allow you to install IPA files on your device without the need for jailbreaking. youtube ipa for ios 12.5.6
If your iOS 12.5.6 device is already jailbroken, you have access to the simplest solution: the YouTube Legacy tweak from PoomSmart's repository. Use mobile web: To install the YouTube IPA
After installation, the YouTube app will function normally, ignoring the update prompts entirely. the YouTube app will function normally
When prompted with "Download an older version of this app?", tap Download . 2. Best YouTube IPAs for iOS 12.5.6