Funnily enough Rick Shiels
reviewed one of these type of launch monitor apps today.
https://youtu.be/Nr6qlQqj2YE
They rely solely on the camera, so are not overly accurate. If you want correct measurement then, it’s still best to get it off a pro at the range. If your not bothered and just want a guesstimate then these apps are ok? Not for me
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