This is a solid, quick and dirty tool to roughly measure vertical jump. I find that when it works (though I am not comparing to a measurement with actual equipment), the results seem accurate and just about what I’d expect. The issue for me is in the video playback, where you tell the app when you takeoff and land, it stutter constantly. The goal is to pinpoint using a high framerate, slow motion video when your feet leave the ground and land again, but this is sometimes impossible when the playback stutters past these two points. I’ll be skipping through a video frame by frame to snag that exact moment the feet leave the ground and sometimes the video will skip several frames for no apparent reason, making that video useless. This appears to be an issue with the app, as the video is in 240FPS and shows no stutter during playback on iPhone.Any fix or rationale for this bug would be greatly appreciated. Other than this issue, the app is very good for what it is, but rendering videos useless due to stuttering frames is a pretty fundamental problem.

I followed the directions exactly but the video for some reason wouldn’t work properly inside the app. I double checked to make sure the original video was right and shot with the correct frame rate and it was, but when inside the app the video seemed to jump from slow motion to normal frame rate, causing the app to miss my takeoff. I wish I hadn’t paid $1.99.

Not accurate

Its a great app but i wish you could play the video and the app would measure your vertical for you