Have you ever been doing mathematics, then come the time to type in the math on your Android device only to discover that there seems to be no way to add that √ sign? If that’s the case then no worry you are not alone!
Grafo is an Android keyboard (soft keyboard) designed for mathematical and scientific input. It is designed with the view that you will not have to constantly switch keyboards on your device. Whichever level your mathematics and science from elementary school to Astrophysicists Grafo is your keyboard.