gravity detector vs PlayMagnet

While on an elevator or plane. You can check the G value you're experiencing, and see which planet's gravity is it equivalent to. Even more, you can measure the earth gravity around your place, take photo/video of the environment, record the coordinate, and save it for future reference. And you can check the G values in map. Note: Please use this app only inside Earth. And the G value is approximate.

PlayMagnet allows students of all ages to play with magnets on the screen. The program has six different disc magnets the user can drop anywhere on the screen. The program instantly draws the magnetic around the magnets the user has dropped on the screen with the mouse. It's made for people of all ages. The program is very simple with only eight buttons at the bottom of the screen. There are three buttons that allow you to pick different magnet discs, an undo button to remove the last disc added, a text button to input coordinates instead of clicking on the screen. It also has a save button to save the screen and a clear button to clear the screen. If you pinch the screen, it has a zoom mode. There's an easter egg if you hold down the clear button.