[FlantasticSea]

Ah, appreciate the response!

Another suggestion is to gray out the 'Start Review' button if there's nothing to review. I couldn't figure out if my test cards were made correctly when it kept saying 'Review Completed!'

I now assume the reason was that the algorithm (?) doesn't have you review cards until a certain amount of time was passed so that screen just indicates there's nothing left to review.

I'd also suggest a way to test the features before creating an account. Perhaps let someone upload and edit a document and only save it once they've created an account.