Google frequently updates the YouTube app to include new features and security measures. Eventually, these new features require higher iOS versions.

Google's official recommendation for unsupported devices is to use the mobile website: . While not a full app experience, the modern mobile site is surprisingly robust, supporting most core features.

If you are still rocking an older device like an iPad 2, iPhone 4S, or the original iPad Mini, you know the struggle of the "App Store wall." You try to download YouTube, only to be greeted by a message demanding you update to iOS 10 or later—which your device simply cannot support.

Downloading and Installing YouTube .ipa for iOS 9.3.5: A Complete Legacy Guide

To install and use YouTube on iOS 9.3.5 (common for devices like the iPad 2, iPad 3, and iPad Mini 1), you generally need a combination of a compatible version and a workaround to bypass "update required" prompts.