: This indicates the app is built for 64-bit architecture and requires a minimum of iOS 10.0 to function.
The string refers to a specific package of the intoLive Pro application, an iOS tool used for creating Live Photos from videos or GIFs. Based on the naming convention, Technical Breakdown : This indicates the app is built for
: This is the premium version of the app. Version 1.8.4 indicates an older release, as the app has since moved to newer versioning cycles. : This indicates the app is built for