On a non-jailbroken iOS device, apps can only be installed from the App Store. For users with jailbroken devices or through certain developer tools, it's possible to install IPA files directly onto a device.
: The game offers 3D graphics with over 700 motion-capture animations to provide realistic player movements.
If you manage to get Real Football 2012-v1.0.2-most uniQue.ipa running on a device, you aren’t just playing a game. You are booting up a time machine to the golden age of paid iOS apps.
While modern games focus almost exclusively on "Ultimate Team" card collecting, v1.0.2 prioritized the solo experience: Enter the Legend:
Without access to the file, I can only speculate on its contents. However, based on the name: