: These refer to specific version numbers of the app and its internal engine.
The string you provided is a specific file name typically used in the world of mobile software archiving and "cracked" application distribution. Specifically, it refers to , a highly acclaimed musical instrument app developed by moForte in collaboration with Jordan Rudess of Dream Theater. File String Breakdown : These refer to specific version numbers of
: Indicates it is a "universal" binary designed to run on both older 32-bit hardware (like the iPhone 3GS) and modern 64-bit processors. os93 : This suggests compatibility with iOS 9.3 or later. ipa : This is the file extension for iOS applications. The Purpose of Such Files it refers to