Getting your hands on specific, older versions of iOS applications—like the (BFI2) IPA you're looking for—usually requires accessing specialized community archives or using legacy tools to pull them from the App Store servers. 1. Check Community Archives
The most straightforward way. Plug in your phone, drag the IPA into the tool, and enter your Apple ID to sign it. Getting your hands on specific, older versions of
Once you find the .ipa file, you cannot simply "download and run" it on an iPhone like a computer program. You will need a sideloading utility: Plug in your phone, drag the IPA into
Since this specific file string looks like it belongs to a jailbreak or legacy app community (often associated with the "BFI" or "MTM" archival projects), your best bet is to check repositories that specialize in "undumped" or archived IPAs. Sites like Decrypt
Sites like Decrypt.day or ARMConverter often host versions that are compatible with specific OS versions (like your OS 15.0 requirement). 2. Using Sideloading Tools