Well... I have a cheap Windows tablet and Rig Manager works fine, there. You need an USB cable, but you can access to Rig Exchange. Portable Rig Exchange was the main attraction, for me, but it looks like your cannot access it from the iPad.
Anyway, not needing a cable is great. Unfortunately, my old iPad (inherited from my brother) doesn't go further than OS 10.
Some day...
Hi, if you have Windows running and if your tablet has WiFi, just enter the SSID from your Kemper's Network info and enter the Key next to it. It should work, I tried it with my laptop successfully. No need for "QR Code Scanning".
Cheers
helmutguitar