: An IPA file is an iOS application archive. "BFI" is likely shorthand for Binding of Isaac . Important Security Note
: The safest and only authorized way to download the game is through the Apple App Store , which ensures you receive the latest updates and security patches. : An IPA file is an iOS application archive
: If you are trying to install a legitimate backup, tools like the AltStore are commonly used by developers and advanced users to sideload IPA files. The Binding of Isaac: Rebirth - App Store - Apple : An IPA file is an iOS application archive
: Files distributed this way may contain malware or unauthorized modifications. : An IPA file is an iOS application archive