: A common suffix used by specific uploaders or tools (like the "BFI" script) to denote it is a "Bundle For Install" or decrypted binary. Important Safety Warning

: Indicates it is compiled for 64-bit iOS architectures (modern iPhones/iPads).

: Suggests the file may have been extracted from a user's "hidden" or "purchased" list on the App Store.

If you are trying to of an app you already own: Use trusted tools like AltStore or Sideloadly . Ensure you have a valid Apple ID for signing the package. To help you find the right solution, please share:

: Often used in the 4PDA community to indicate the file was tested and works on iOS 14 .

If you are looking for the legitimate version of this app, it is available for purchase on the Things 3 App Store page .

Are you trying to you can no longer find? opa334/AltList: A modern AppList alternative - GitHub

This specific file naming convention is typical of often distributed on third-party forums like 4PDA or Internet Archive .