
Mike Mayer
Good app, but it could be better. My biggest complaint is that if you are trying to make a complete video, the scoreboard is not available for putting in the putting line section. I wish there was a way where you could just add the scoreboard to any video of a swing without having to use any of the shot tracers.

Matthew
Ball tracking is absolutely off track. Despite the need to edit your video down to twenty seconds each time, this cropping your time walking to and from the phone, the tracking is wrong every single time. I can watch the ball take a far different trajectory even within the mere 20 seconds of slo-mo. Don't waste your money.
4 people found this review helpful
Thanks for your feedback. Slow-motion videos aren't ideal for shot tracing — they're better for Head Tracing or Swing Print. For more accurate tracking, we recommend 1080p at 30–60 FPS (non-slow-mo). Feel free to share a sample video with us so we can assist further!

Mandy Zahn
after a few days, it won't let you us the app, For example you want to track your ball but it got to 99%. after 10 mins, it will get to 100% and reset the app. So you have to restart. but I tried and tried. And it still didn't work
underparlab
August 18, 2025
Sorry for the trouble. We had a brief server congestion/error around the time you used the app, which could cause processing to stick at 99% and restart. This has been fixed.
If the issue persists, email us at support@underparlab.com with your video and the time of the attempt—we’ll sort it out quickly. Thanks for your patience.