SelfMatch app for iPhone and iPad

Introduction
SelfMatch is simple challenge game that improves brain balancing. In this game, players must draw pairs of shapes with both of their hands, at the same time. The faster and more precisely players can draw the shapes, the more brain control they can gain.

Gameplay
The difficulty of the game is variant by following factors:
shape: including circle, line and polygons that can be drawn by one stroke, see here
starting point
direction
time to finish
Constraints: player must draw the shape
using both left and right hand, starting and finishing at the same time (delay < 100ms)
using one stroke per hand
starting and finishing at the predefined starting point
Game modes:
Kid: in this mode, time to completion is unspecified, no score. Gamers can draw anything after game over until click new game.
Arcade: in this mode, user plays to earn scores
1 score = completion of 1 pair of shapes
time to completion is decreasing
game over when player cannot finish the shapes in time
game over when player cannot complete the shape in the correct way
Levels:
easy: circle, line, shapes with 1,2,3,4 edges
medium: circle, line, shapes with up to 7 edges
hard: circle, line, shapes with up to 10 edges