Jolly Logic

AltimeterOne

How high did it fly? For any type of flying.

AltimeterTwo

Just for rockets: altitude, speed, acceleration and timing statistics on one tiny screen.

AltimeterThree

AltimeterThree can download altitude graphs and spreadsheets to your Apple and Android phone or tablet. Awesome for research!

Chute Release

Chute Release for model rocketry.

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