Tap the IPA file within the file manager and select .

Since modern iTunes and Finder versions have removed App management, you’ll need specific tools to move the IPA to your iOS 5 device:

If you prefer to sideload an IPA directly, several archive sites host legacy versions.

Connect your iOS 5.1.1 device to the computer via a 30-pin USB cable.

: This bypasses App Store compatibility checks on older firmware.