It is hard take an idea, spend the time to build, and make it live. Congrats on doing this! I'm not the target audience, so I can't comment on the value propos

It is hard take an idea, spend the time to build, and make it live. Congrats on doing this! I'm not the target audience, so I can't comment on the value proposition. I'll just point out a few things I noticed on the site: - The "Free" signup button brings you to the login and not register page. Also the $5 pay link goes to login too. I used the $5 link and then clicked register. Registered and was never asked for payment. - On the register, suggest not asking for username creation unless you really need it...just use the email as the username. - The step-though-guide last step has "next" and doesn't do anything. Should be close. There are a few good step guide packages out there you might want to consider. - In the app, clicking "Upgrade" give a 500 error. - If you try to create a card before creating a deck says need to select a deck. People probably will first click on create card first, so suggest have a default deck that you can select right away. - Created a single card and says I have 2 cards when studying. I think counting both sides of the card.