Sergej Marinowski
Sergej Marinowski published 1 application on Google Play, 7 people rated this app with an average rating of 3.00!
MarIS Tennis Serve Speed FREEMeasure the tennis serve speed with the help of high-resolution audio recording with 48,000 samples per second! You don't need to play touch screen reaction heroes like in other apps - let your phone or tablet determine the flight time! Two parameters...
Free App