Good idea, but....
Big problems with custom deck:
checked card are blak checked in list, and the cards number in deck is not shown...
Please change UI !
Some stuff out of screen when in portrait/landscape mode. (Not easy to understand why 2 different editors modes...)
Button positions...
Change font (way too big) or custom fonts
Better Deck preview (retina display rules !!)
And to respond to your "5 star asking alert message" :
youll get these with the work done ;-)
scarredeye about
Flashcards+ by Chegg, v2.5.1