Don’t buy
It is so hard to use and crops every single video so it’s impossible to set take off and landing
Pretty good but hard to use
It's a good app and when you do it all right it's great but the cropping when you put the video in is really bad and you have to duplicate the video change the crop over and over if they made a feature where you could crop and change the crop ness on the app not in the camera roll it would be good
Very reliable and easy to use, 5 Stars!
This app is not like the other Vert testing apps, this is much much simpler to use, includes other great simple features (such as dunk calculator and more), AND you can always trust as it uses literal scientific laws of physics to calculate your vertical jump by you uploading a video of yourself jumping, to the 0.01.
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Worst use of $2.99
This app is just terrible. There is no scrubbing function at all so it’s near impossible to set accurate take off and landing time stamps. The video player is extremely glitchy and there is no way of zooming in or out of a video get your feet into frame. There are many unsatisfactory vertical jump measuring tools out there but this is by far the worst. You’d be better off spending your $2.99 on a pack of gum or maybe 1/2 of a McDonald’s happy meal.
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Worst waste of money
Extremely unacurate
Review
Can’t see the feet. Full screen mode just isn’t it. There’s definitely better ways to measure vertical jump then paying for this and getting nowhere. I measure it with a tape and I had 26 inch vert. App says I have 22. Huge difference and I know the app is wrong it just doesn’t do the job for me.
Good App But Needs Work
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.
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.
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Not accurate
Not accurate
Buggy
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.
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Works great lacking saving feature
I think it works great there is a similar app for more than 10€ which basically measures the same thing with the same technique. Please implement a feature so that I can measure my progress. Is there a github page I can follow?
It’s decent but could be better
It’s a decent app however when you have a portrait video you often can’t even see your feet to place when they leave the ground which makes it unusable. I wish the video player would extend because when you put it in landscape mode it doesn’t take into account the scale of the video and only gives you the middle portion of the video
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Only one complaint about the app
Its a great app but i wish you could play the video and the app would measure your vertical for you
Good app
Dope app. Does what it says and seems very accurate
Good
Best app ever.Can you shout me out in your next YouTube video
Very confusing
It says landing and takeoff. Very confusing
Response from developer
Press the HelpButton on the top and check out the screenshots along with the explanation on how it works. It's really not that difficult!
Very good👌👌👌
Works quite well to measure your vertical leap and I love the dunk calculator
Beautiful App
App is perfect for its purpose can’t recommend it any more!
Buggy, probably inaccurate too
The video frame feature is buggy, doesn’t let you fwd-rew through each frame very well. Sometimes skips A LOT of frames!
Also, nowhere in this app does it ask for weight. I’m no expert in physics but common sense would indicate that a heavier person would spend less time in the air than a lighter person jumping the same height. For example (using an extremity) if you threw a balloon 20 feet into the air and a Basketball 20 feet air, we would expect the Basketball to return to the ground a lot quicker due to the gravitational force being applied to the heavier object being much greater....however they both went the same height!
Also, nowhere in this app does it ask for weight. I’m no expert in physics but common sense would indicate that a heavier person would spend less time in the air than a lighter person jumping the same height. For example (using an extremity) if you threw a balloon 20 feet into the air and a Basketball 20 feet air, we would expect the Basketball to return to the ground a lot quicker due to the gravitational force being applied to the heavier object being much greater....however they both went the same height!
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Response from developer
About the buggy frame selection: Yes, sometimes there are problems in very short videos with skipping between frames. Unfortunately, this is a problem of the video codex used by the iPhone, as it seems to use a variable frame rate and takes 2-3 seconds to run stable at a higher frame rate. If you shoot a video that is longer than 5 seconds, there should be no problems. About the weight: This is not very intuitive, but weight does really NOT influence hang time. The reason why the balloon in your example is a lot slower is air resistance. In a vacuum, a feather and a piece of lead will fall exactly at the same speed which is determined by gravity. As the difference in air resistance is negligible between two athletes (and impossible to compute anyway) it doesn't make any difference in this use case. You can try this yourself by letting a basketball and medicine ball fall from the same height, they have the same shape but different weights - but will fall to the ground at the same speed.
Great App
The app is easy to use and accurate. It allows you to slow videos down from frame to frame and get your vertical measured as accurately as possible. Also it allows you to measure your vertical if you don't have the resources to measure it otherwise. 10/10 would recommend.
