n01 by Nippon Algorithm Company LTD. is a lifestyle app that is a must-have for any darts enthusiast. It is an app designed to calculate scores for darts games, rather than a game itself. The app is designed for iPhone and is available as a full version.

The app is incredibly easy to use. It allows you to input your score while playing darts, and then it calculates and displays the result of the game or the average of the scores. The app also allows you to play against the computer at different levels and provides the option to set starting scores for each player. You can exchange scores and return to the previous leg or end the current leg.

Additionally, the app has several useful features such as displaying detailed player information, listing the scores of past games and displaying score statistics. With its rich features and user-friendly interface, n01 makes scoring darts games a breeze.