Great, wish I found it earlier

reallly works quite well, I bought the Mac (OSX) and iOS versions and syncing works perfect it even syncs your progress learning and not just your flashcards.
One very minor suggestion is that imo it repeates cards too soon regardless of whether you choose “repeat soon” or repeat later” (which I think is “Hard” and “not sure” on the iOS version), Again though it works awesome nice polished interface:). I highly recommend importing spreadsheets (CSV) if you want to make lots of cards quickly.

golten about Flashcard Hero, v2.4.2