Developer communities like iOSGods provide "hacked" IPAs. Users frequently post "FIFA 14 MOD (Unlimited Coins/All Players)." These require a Sideloadly or AltStore installation.
If you simply want a mobile soccer game from that era, the Android version of FIFA 14 is easier to run via APK + OBB files on an old Android phone. Android handles 32-bit legacy apps better than iOS. This requires no "crack" in the same sense, just an APK installer. fifa 14 ipa file cracked
Surprisingly, the most reliable source is often the Internet Archive. Preservationists have uploaded "abandonware" IPAs, including FIFA 14. However, even these are legally gray. While the game is no longer sold, the copyright is still owned by EA Sports. Developer communities like iOSGods provide "hacked" IPAs
If you bought FIFA 14 when it was available, go to the App Store > Updates > Purchased. If you are on an old device (iPhone 4s/5) running iOS 6-10, you can re-download the official, uncracked version. It will work offline as long as you don't update the iOS. Android handles 32-bit legacy apps better than iOS