It is kind of misleading. I purchased it thinking I could use it to put tarot cards in, but it is basically a magic eight ball that you can use an image of a card instead of an eightball. Don't buy it expecting to be able to have a real tarot app.
Author response
You can create a full custom deck changing the graphics of the 4 default cards provided, putting how many custom cards you want (back-face), and setting how many random answers you want (front-face). I thought the online demo was quite self-explanatory. I suggest you to contact the author if having any doubt before giving low ratings the next time.. by the way the name of the plugin is "magic answers", not "tarot app" ;)