Good app – KickPower - Soccer Ball Speed Detector Review
When I first got this app it was horrible and the directions were horrible. But then I found more directions on a web page and it helped me and now it works. Make sure you are around 9 yards away from the soccer ball. Put the soccer ball in the rectangle on the left side and make sure you kick the soccer ball past the next rectangle or through it I don't know how to explain it, and it should give you a speed.
Review by Oscar727592948 on
KickPower - Soccer Ball Speed Detector.