Couldnt get this thing to work AT ALL. Paid $8 for baseball, nothing. No matter where I placed my phone, no matter how it positioned, never got one single reading -- always an error about too much motion. Funny that there is a video on the companys website that shows the primary camera being used, yet the app only uses the front camera. And there is ZERO visibility to where you are pointing the phone because there is no picture displayed back, only the black screen ready to display speed - yet but the blinking red dot saying "too much motion" I cant believe the total lack of anything useful. DO NOT PURCHASE THIS MESS.
TypicalUserHere about Athla Velocity