Area 81 is an app designed for serious Sudoku players. The app is targeted at experts, or those wanting to be experts. It comes with various different types of the popular puzzle, with varying levels of difficulty. The design was commissioned by a world Sudoku champion, who also led the design of the puzzles to be used in the app. The work involved everything from the logo and color palette to the navigation (UX) to final layout design (UI). The design approach is minimal, no frills, nothing to distract the players from solving their puzzles. Even the screen changes are minimal, most of the interaction takes place within only 2 screens, with sliding panels to make it as efficient as possible. Currently, the app has only been designed for the iPad, and is still in the development stage.