You are correct, there is a mobile app interface for it.

You can check firmware version and device status, update it, have access to file manager, can backup keys, read logs, reboot, speed/stress test, and probably do a lot of other things that I am not aware about.

Any app run on the Flipper Zero can be run and interfaced with from the mobile app. It works quite well.

> I would think there would be a mobile app interface for flipper?

If you want to interact with the software on flipper zero you have to use the "remote" app (or whatever) on the phone. It kinda sucks though because it literally acts just like the physical device. If you wanna type a filename out and think having a full keyboard like on your phone would make that task easier... it doesn't. You are stuck using the fake "buttons" to move the cursor around to each letter just like you would on the device itself.