Using this app as an example:
https://apps.apple.com/app/deezer-music-podcast-player/id292738169
I would like to just download the file itself, is that possible? To better explain, for example with an Android app, some different websites and programs are available for this purpose:
https://android.stackexchange.com/questions/12330/how-can-i-download-an-apk-file-from-the-play-store
So I am wanting the same thing for Apple if possible. I would like to download the app file, so that I can inspect the contents.