Tap the YouTube icon. If it crashes immediately, reboot your iPhone. Older iOS versions sometimes freeze after the first sideload.
On your iOS 10.3.4 device, go to Settings > General > Device Management > [Your Apple ID] > Trust "[Your Apple ID]".
For the uninitiated, an IPA (iOS App Store Package) is the archive file for an iOS application. Think of it as a .exe for Windows or a .dmg for Mac. Youtube Ipa For Ios 10.3.4
When Apple removes an app version from their servers, your device cannot magically fetch an old copy. However, users and archivists have saved these older IPA files. For iOS 10.3.4, you cannot use the latest YouTube IPA (v19.x). Those are compiled for iOS 15+ and use APIs that your legacy device doesn't understand. Trying to install a modern IPA will result in a "Firmware Mismatch" or "Invalid Executable" error.
The Golden Build: The last compatible version of YouTube for iOS 10.3.4 is YouTube v14.02.1 (sometimes v14.03, depending on the server configuration). This build was released in early 2019. It still supports the older UI, the old player, and crucially, the old authentication methods. Tap the YouTube icon
iOS 10.3.4, released in 2017, is supported on older devices like the iPhone 5s, iPad 4th Gen, and iPad Mini 2. The official YouTube app is not available for iOS 10.3.4, as Apple requires newer operating systems for recent app versions. For example:
Thus, users on iOS 10.3.4 must seek older versions of the YouTube app or alternative solutions. On your iOS 10
Because I cannot host files directly, look for these specific file names via open-source preservation projects:
Tip: Do not download "v15" or "v16." While those theoretically support iOS 11, they will crash instantly on 10.3.4.