Line Umpire

By ApplicVision on AppTrack Ninja.

Live line calling for tennis

Use your iPhone as a Line Umpire when you play tennis to call a line in real time during play. Please note: Line Umpire works better on newer devices, where it can make more observations and perform more calculations in less time. Also note that the app monitors one line. So if you want to cover more lines, more devices are needed. First select the line to monitor, and then as soon as an out ball is detected, the phone will flash and make a sound. Also, If you wear an Apple Watch, your watch will vibrate when the ball is out, and you will see a snapshot image of the last bounce. You can conne…

Categories: Sports

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