We’re super-excited to announce that we are just putting the finishing touches to our new 3D Grapher App:

Cross-section of a cube

Ruled Surface

f(x,y) = sin(x) sin(y)

Please try the beta-test version on your phones and tablets and let us know if you encounter any problems. Then we can release it soon for everyone to play with. Get it now from https://play.google.com/apps/testing/org.geogebra.android.g3d