If you're still using an iOS device with iOS 7.1.2, you might need IPA files to:
: Some third-party databases still host older versions of apps, though availability varies. How to Install IPAs on iOS 7.1.2 ipa files for ios 712 top
An (iOS App Store Package) is an archive containing an iOS application. In the modern era, these are encrypted and tied to a user's Apple ID. However, for iOS 7.1.2, the ecosystem works differently because the App Store no longer offers "last compatible versions" directly on the device for many apps. If you're still using an iOS device with iOS 7
: A specialized collection of over 800 classic games from the 2008–2012 era that are highly compatible with iOS 7 hardware. for iOS 7.1.2
