Google has significantly updated its OAuth login protocols. You may find that you cannot sign into your Google account inside the app because the security handshake is too old.
Unless you are a vintage tech collector or a dedicated jailbreak hobbyist with an iPhone 3G, this app will be an exercise in frustration. The app is a museum piece—beautiful to look at, but non-functional without significant technical workarounds. Youtube 1.2.1 Ipa Download
This version, and others around it, supported iOS 5.0 and higher. If you have an old iPhone 4s or iPad 2, this is likely the last version of YouTube that will run natively and snappily on your device without lag. Google has significantly updated its OAuth login protocols
This is the most common method for modern users testing legacy apps. The app is a museum piece—beautiful to look
Disclaimer: This guide is for informational purposes. Modifying or installing legacy software on iOS devices should be done with caution.
. It is primarily sought after by enthusiasts and collectors using older hardware, as it is one of the few versions compatible with Key Features of Version 1.2.1 Classic UI