The Robot Language Spanish Flashcards App uses audio and visual representations of the vocab word in an effort to help people learn foreign language vocabulary better.
All of the different decks have images, and GIFs for the verb decks. Try them out!
There's a test at the end of each set of words - mutliply-choice press the image style - and you can see your best score for each set in the deck list.
You can see your current card count in the top right of the app. This number will reset after 24 hours of inactivity.