This comprehensive guide covers every method available to get the old version of YouTube back. Why Downgrade YouTube?
Instead of hunting for specific versions, the community maintains the "Vanced Manager." This utility app handles the installation of the patched YouTube client for you. It supports both rooted and non-rooted phones and automatically checks for updates. By downloading the Vanced Manager from the official website (vancedapp.com), you can essentially install a "hacked" old version of YouTube that looks classic but has modern features like swipe controls and picture-in-picture.
If your iPhone or iPad cannot run the app at all, the best alternative is using Safari to emulate the classic mobile experience. Open and navigate to ://youtube.com .