This build is highly stable when combined with popular side-loading modifications (like YouTube++ or Cercube). It allows users to inject custom features like background playback and ad-blocking without crashing.

, version 15.02.1 is widely regarded in the community as a "stability sweet spot" for older operating systems. iOS 10 Support

Newer versions of the YouTube app require iOS 14 or later. Version 15.02.1 serves as an ideal baseline for older devices running iOS 12 or iOS 13 that can no longer update through the official App Store.

To install an IPA file on your iPhone or iPad, you will need a sideloading tool:

: Move the YouTube IPA file to your iOS device via iCloud Drive, AirDrop, or the Files app.

If you are downloading a modified version of YouTube 15.02.1 (such as uYouPlus, uYouEnhanced, or Cercube), you typically unlock several features that Google tries to lock behind a YouTube Premium paywall:

Please note that downloading and installing IPA files from third-party sources can pose a risk to your device's security. Be cautious when using these methods, and always download from trusted sources.

If you install this, the App Store may try to update it automatically. You may need to block YouTube updates in your app manager or just avoid clicking "Update All."

Using older or modified software to access modern services is a constant game of cat and mouse. While the 15.02.1 trick can be an effective solution, it comes with risks and is not always stable.