: Refers to version 1.501 . Major official iOS updates, such as the Repentance DLC launch , typically follow a 1.x numbering system.

: 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. "BFI" is likely shorthand for Binding of Isaac . Important Security Note

: Generally means the app requires at least iOS 9.0 to run, though the most recent official version of the game requires iOS 16.0 .

: Files distributed this way may contain malware or unauthorized modifications.