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 your tennis serves with just your phone or tablet. No radar needed.

1K+

Downloads

Everyone

Track your tennis serves with just your phone or tablet. No radar needed.

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