Fill it~! app for iPhone and iPad
You need to observe the two shapes and estimate their areas. To play FILL IT, you need to know something about geometry, if you dont, this will be a good chance to learn. Learn for fun, double benefit.
Features
1 Fun. Simple. Easy to understand.
2 More than 50 shapes are waiting for you to fill. 3 Its definitely not as easy as what it appears. Only a few players can succeed continuously 20 times. Will you be one of them?