First off, thanks for this great tool!
Lately, however, the "Only Android" checkbox under "Owned items" is giving me a blinking spinner for a few moments and then a blank listing. I have A LOT of games in my account, due to buying a few large bundles, so maybe that's the issue. I feel like it may have started after grabbing the Ukraine bundle a few months back.
I was using F-Droid to install the app (currently listing v1.4.7), but I've tried downloading v2.0.0 from here and I'm getting the same results either way.