Sudecku: A Deck-Building Twist on Sudoku for iOS

Hi PH! I'm thrilled to publish Sudecku, an iOS game that takes the familiar 9×9 Sudoku grid and adds a deck-building layer. Instead of just filling in numbers, you play them from a custom deck you build as you go. When playing standard Sudoku, you look at the grid and fill the numbers where they logically fit, with Sudecku, you're limited to playing the numbers you're holding in your hand, you can discard and draw cards to handle difficult situations. You can also use special-ability Power Cards to (for example) instantly fill a cell, validate a cell, return a card to your hand, etc... Playing power cards costs score, and the end goal of each solve is to get the highest score possible, which you can use later to buy power cards or upgrade your decks. This was a labor of love for me, and I'd love to hear what you think, any feedback or questions are welcome.