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Well, cliffs, skyscrapers...

Drops something and you hear when it touches the ground. iPhone will say the depth of the well, cliffs or other.

If you rely on sight. the program displayes depth and speed, at the moment, of the body in freefall.

It takes into account the terminal velocity and the restraining force exerted by the air.

The user can choose mass, section area and drag coefficient and air temperature or simply the vacuum!

It also contents a beautiful movie about a body in freefall!

Because it is free we add ADs

If you find some problem at the start, uninstall the previous version and reinstall the new.

The program does not require internet connection.