Thank you!
The game was definitely not made to be played on mobile, but here's a little tip for playing there: to see the tooltip of cards and abilities in the shop without buying the item, you can first click the flag option, then click on an item to flag it, then wait for the tooltip to appear (and ultimately unflag the item if you don't like it).
Maybe you already figured out this trick, but it may still be worth sharing for other players who may want to play on mobile (in this extremely sub-optimal way), waiting for a fully supported mobile release.