If you have previously downloaded YouTube on your Apple ID, you can sometimes force a "last compatible version" download: and go to the Find YouTube and tap the cloud icon. If prompted, select "Download an older version of this app."

Launch Sideloadly and connect your iOS 9.3.5 device to the computer via USB. Ensure your computer recognizes the device.

Even if you install the app, it may show an error message. If your device is jailbroken (typically using ), you can "trick" the app into working. Install Filza File Manager: Available via Cydia.

If your device is (e.g., with Phoenix or HomeDepot for 32-bit devices on 9.3.5):

file, the server-side restrictions often trigger an "Error Loading" or "Update Required" message that you can't bypass.

Once the app is on your screen, clicking it immediately will trigger an "Untrusted Developer" error. This is normal iOS security behavior. On your iOS 9.3.5 device, open .

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A prompt will appear asking if you want to download the "last compatible version." Tap .

Tap on to open it in the built-in text or property list editor. Find the following two keys: CFBundleShortVersionString CFBundleVersion

You need a legacy version of the YouTube IPA file (typically version 12.11.6 or 13.01.4). Search reputable archive sites like Archive.org or iOS Ninja for "YouTube legacy iOS 9 IPA." Download the file directly to your computer. 2. Install Sideloadly on Your PC or Mac Download and install on your computer.