The YouTube app on iOS devices has undergone significant changes over the years. The app was first introduced in 2010, and since then, it has undergone numerous updates to improve performance, security, and user experience. However, these updates often require newer versions of the operating system, leaving older devices and operating systems behind. iOS 9.3.5, in particular, is an older version that may not support the latest features and security patches.

Did this method work for you? Let us know in the comments if you were able to recover the old YouTube app or if you've switched to the web version!