Place your smartphone on a tray on a horizontal surface.
Who can move the tray to another horizontal plane with as little tinkling as possible of the 100 virtual glasses?

The maximum time can be set in seconds.

Send the metal ball bull's eye to get your smartphone completely level.

The bullet can now also hit the bull's eye (at the request of Django).

At the bottom right of the field you can read the number of degrees of the long side of your smartphone in relation to the horizontal plane.

At the bottom left of the field you can read the number of degrees of the short side of your smartphone in relation to the horizontal plane.

This app is free with no ads and no in-app purchases.
Built with App Inventor from MIT - Massachusetts Institute of Technology.

App based on an idea of ​​my son Natan.

Dr. Luk Stoops 2019