If you get a "Download failed because you may not have purchased this app" error – the OBB is either missing, misnamed, or in the wrong folder.
Have you successfully installed FIFA 13 on a modern phone? Share your experience in the comments below – especially if you found a workaround for Android 13+. Download Fifa 13 Apk-obb Offline
This method has been tested on older Android versions, and with careful adjustments, it can work on newer devices. If you get a "Download failed because you