Pulsate

Pulsate - Create your own music using the usual circles. Very cool and entertaining music app in which you will create your own melody using circles! A very unusual way of making music, the sound will occur when the circles are colliding. So this app is not only interesting but also very difficult, because you need to specify the size of the circle, and calculate the moment of contact with another circle. The number of circles you can create is not limited, so you can just tap all over the screen, but then I doubt that you'll have a normal ringtone.