Simple and elegant calculator for iPad and iPhone. Features a beautiful sleek design with the ability to choose from several different themes. Best of all, the standard version is completely free and very easy to use. Premium custom themes now available as an in-app purchase! Create custom gradient themes with up to 6 different colors and 3 gradient configurations. Create custom themes using your own images. You can look at your dog, cat, mouse, zebra, mongoose... every time you have to perform a simple calculation!