organically selected music in the program, which will add positive emotions and can create the effect of complete immersion in the game.simple and easy-to-use interface, as well as a catchy design made in a minimalist style.adequately implemented gameplay, consisting in essence of endless circles and repetitions numerous of simple actions.Several of the most important characteristics of the utility according to the statements of the developers: The simplicity of the gameplay guarantees you pleasure for a long time. The rules of the game are simple to the limit: you will need to match the numbers with each other in such a way that their sum forms a larger number. Threes! is an uncomplicated game and a fascinating puzzle in one bottle.