Is there a way to access iOS documents without iTunes?

When an iOS device is connected with a computer, you can access some files via iTunes.

I want to create a simple app that can backup certain files of some app and copy them to another iOS device.
That app is not created by me. But I can access the shared files through iTunes.

I just want to easily manage some data within these files. The files I am working with are simple SQLite files. Manually I can edit these and merge some tables. But I want to make it more “streamlined”.

It would make a lot of sense to just connect my iPhone with my mac and have my Xojo app detect it. With my Xojo app I could just browse to the file I need.

Is something like this possible at al? Maybe via declares?

libimobiledevice lets you do some of this without itunes