That's another one I used to use a lot, and lets face it if you sell o eBay it does make it quite a bit easier to use a phone for a listing. But I could never get the app to work, I assumed it was for the rejection of non-stock Android builds. It's strange I've had zero problems with things that matter most (banking, etc) but less essential stuff like eBay and Nest thermostat apps don't work at all.