No crank, no start issue?

We recently acquired the truck listed above Power stroke a few weeks agon and it worked fine when we got it. The previous owner had one of those cheap $13.00 ELM327 Wi-Fi scanners in the obd ii. I decided to try out the revheads app (just reads your rpms to imitate engine noises over obd2). I drove it around like this for a while and it worked fine, parked it and then disconnected from the scanner. When we went to turn it back on, it wouldn't crank, start, anything, just a click. We checked the batteries, fine and the fuses seemed to be fine too. Used that same crappy scanner to pull codes and got U0101 and U0073, but then tried to scan them later in the day and there were no codes. We got it to turn on by directly powering the starter but now it doesn't seem to want to actually move. You can switch gears, but it won't shift or accelerate to any drivable speed. Is it possible that somehow using the app with the scanner could have caused this? As far as I know the app doesn't write any data to the computer so there should have been no reason for it to cause this. And what could be the fix?