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Track Your Explosive Power
Record, measure, and analyze your volleyball jumps. See your vertical leap improve over time.
Start TrackingEverything you need
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Sound Countdown
Audio countdown gets you ready. 3... 2... 1... Jump!
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Phone Sensor
Use your phone's accelerometer to estimate jump height automatically.
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Track Progress
View your history, personal bests, and see your improvements over time.
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Volleyball-Specific
Track vertical jumps, approach jumps, block jumps, broad jumps, and more.
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Fully Offline
All data stored locally on your device. No account needed.
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Quick Entry
Record jumps manually or with sensors. Multi-jump sessions made easy.