If the app is too slow or won't install, the mobile website is a reliable alternative. on your device. Navigate to m.youtube.com button (square with an up arrow). Add to Home Screen
Tap the Cloud icon (a cloud with a downward-pointing arrow) next to the YouTube app icon.
If you tell me what specific error message you're getting , I can try to give you a more tailored workaround. How to install YouTube and Facebook on iOS 12.5.7
with your Apple ID on a newer iPhone or iPad (e.g., iPhone 11+). Download YouTube from the App Store on this new device.
Free sideloaded apps using a personal developer certificate must be re-signed every 7 days via a computer running on the same Wi-Fi network. General Sideloading Overview