I use PhoneView for Mac. It may or may not be what your after but could be a path to non-apple sourcing for apps that let you have easy access/control of your info on a iphone
Data Hoarder
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
u/TillAny4068, iOS, the operating system on all iPhones, is a closed developed OS by apple.
Any third party software out there, MUST use, in one way or another, apples drivers, whether they like it or not, to access the device.
Therefor, whehter you use itunes to make a backup of your device or a third party app, you are still using the same drivers, thus making the same api calls.