New version 4.0 available!

No recurring fee: $0/month.
Free App and Cloud forever.

Special: free shipping for one set in USA!

Each In/Out v4.0 works with 2 line devices.
Design for any ball sports. Currently optimized for tennis, pickleball and badminton.


DEVICE
Net Device v4.0:
One device suffices, two devices are better.
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Line Devices:
You need at least 2 Line Devices per court.
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My prefered sport to use In/Out:
SHIPPING ADDRESS
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PAYMENT
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You accept the terms of In/Out. All sales are final. Software in beta.