The naming convention follows a standard format used by file-sharing communities to denote compatibility and versioning:

: Standard, scientific, and programmer modes.

: These versions often lack official updates, meaning they may crash on newer versions of iOS (like iOS 17 or 18).

To give you a better recommendation, are you looking for a (like unit conversion or finance) or trying to fix a compatibility issue with an older device?

: Real-time currency exchange rates, length, weight, and volume units.

: To install this, you would typically need a tool like AltStore , Sideloadly , or a jailbroken device.