Because it uses the Neural Engine constantly, it drains the battery quickly and can cause the phone to run hot.
The naming convention suggests it is an .IPA file (an iOS app package) sourced from a third-party archive or "user-hidden" repository rather than the official App Store. Pros Significantly better shadow detail than the stock app. Intuitive interface for manual adjustments. Clean UI that stays out of the way of the viewfinder. Cons Because it uses the Neural Engine constantly, it
In extremely dark settings, you may see some "ghosting" or motion blur as the AI tries to fill in missing data. Verdict Intuitive interface for manual adjustments
It supports 4K recording and various frame rates, though performance is most stable on newer hardware (iPhone 11 and later) due to the heavy computational load. Verdict It supports 4K recording and various frame
The specific filename you provided ( v1-unk-64bit-os130-ok13-user-hidden-bfi-ipa ) indicates: Version: It is likely an early build (v1).