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By TrackByte

This app is only available on the App Store for iOS devices.


Calculate the initial speed of your tennis serve as shown on TV!

√ Calculates both Mph and Km/h
√ Record your serve at 240 FPS in HD quality!
√ Also calculates/tracks the time, distance, average speed, speed at bounce and direction.
√ Save results (keep track of history), compete against your friends and track your improvements over time!
√ Add multiple players and calculate the speed of your friends and opponents!
√ Save videos including the speed of each serve, analyze them in slow motion or frame-by-frame, and get instant feedback.

In-App update to compare yourself against the professional tennis players like Roger Federer, Rafael Nadal, Serena Williams, Pete Sampras and many other top ATP/WTA players and Tennis Legends.

Gain the privilege that formerly only the PRO’s could enjoy in their radar gun-equipped environment.

Test results made at the Australian Open:
2nd serve Novak Djokovic, Professional radar gun 156Km/h, ServeSpeed App 158Km/h
1st serve David Ferrer, Professional radar gun 197Km/h, ServeSpeed App 197Km/h
1st serve Victoria Azarenka, Professional radar gun 159Km/h, ServeSpeed App 156Km/h

The idea for this App originated from the Tennis Warehouse Community where more than 750 people up voted for this App to be made.

This App has been created with dedication and passion to improve the most powerful skill a tennis player can have: ‘the serve’. It uses advanced algorithms to calculate the initial speed (ISS), which corresponds to the speed shown on TV. The calculation is based on the position from where the ball was hit ‘till its landing location inside the service box. Holding in account the player’s height and most important the travel time of the ball. Taking advantage of the iPhone’s great camera, this App allows you to record your serve at 240 FPS (frames per second) that provides the best precision!

Using a simple 4 step intuitive interface, which includes the graphical representation of the court with a moving scale that will further enhance the precision of data entry, you can calculate the serve speed within seconds.

There’s a free feature in this app that allows you to save your serve videos including the speed and date. This will help you to keep track of your serve’s history, making it easier to review and compare them to your opponents.

Please feel free to contact us for any comments or concerns regarding this App.

What's New in Version 3.2

Improved accuracy by adding functionality that allows you to select the service box from the video frame, which makes it very easy to determine the exact bounce position of the ball!


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews

Very cool app, very easy to use

I was highly impressed with the ease of use. It will give you instant feedback and track your progress. My first serve I did was 83 MPH, and I am hoping with this app to get it to 100+, I am confident it will happen!


This app is perfect for what it's meant to do. It takes every factor into account and from what I've seen its pretty accurate. Also the customer service is excellent. This app is definitely worth the $3!

Fun app

Have to get used to the controls, but the tips are readily available. Be sure to record one serve at a time or your video will be compressed and be in slow mo. Highly recommended

View in iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Sports
  • Updated:
  • Version: 3.2
  • Size: 15.0 MB
  • Languages: English, Spanish
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Compare yourself with ATP & WTA players$0.99

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