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Dr. André Zenner
A Tennis enthusiast with a PhD in computer science who wondered how fast his serves are.
The result: the Tennis Serve Speed Tracker app!
Tennis Serve Speed Tracker
Dr. André Zenner
In-app purchases
Track the speed and accuracy of your Tennis serves
1K+
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PEGI 3
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Track the speed and accuracy of your Tennis serves
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Tennis Serve Speed Tracker
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