iPhone Screenshots


This is a professional app for measuring punches.
Get your punches' power, speed, and duration with real values and high accuracy.
Measure your reaction time.
Store all the punches.
Compare them with each other.
Track your progress.
Share punches.

How does it work?

To record a punch, grip iPhone tightly and punch. App records a punch motion at the inertial frame of reference using gyroscope and accelerometer data and saves the punch.
All information about a punch is revealed now.
Graph of speed and all the punch rates: acceleration, distance, power, duration, reaction time.
On speed graph you can see how your punch accelerates and swing as first peak if it exists.
You can record another punch to make a comparison, or you can share your punch.
You can choose appropriate units: kilograms or pounds, kilometers per hour or meters per second and etc.
You can record any kind of punch and not only the punch but any motion of your body.

Technical data:

On iPhone 4S application can’t work properly. Punch speed on iPhone 4S may be 2 times lower, but duration and reaction time are still correct. App works perfectly on iPhone 5, iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE. But it may be not that easy to grip iPhone 6 Plus or iPhone 6S Plus when you punch.

Speed measurement error is not more than 5% in most cases. Maximum acceleration is about 16g. Power is calculated approximately, with special formula based on your skills level, punch speed, and your mass. Put your mass in a punch to get more accurate result. Distance is calculated with small deviation when you punch the air. You get a straight distance between punch starting point and punch ending point. Time accuracy is limited to 10 ms.

Warning! Use this app only at your own risk! Make sure that you hold your iPhone strong enough and be careful when you punch! Developer disclaims any responsibility.

What’s New

Version 2.2

This app has been updated by Apple to use the latest Apple signing certificate.

• Fix repeated like-row appearance at the bottom of the table after the punch. Now it appears only once.

Ratings and Reviews

4.0 out of 5
9 Ratings

9 Ratings

dbanici ,

Excellent app

It is a great tool to train for speed without buying expensive tools. You don’t need it to match any other machine. You create the baseline yourself by throwing the first punch. Then try to achieve better from there. I take the battery case off, so the phone is as light as possible. Love it, thank you! I am using this on an iPhone 6plus.

Kwanghis ,

It’s eh

It’s a good app but functionality wise it’s pretty bad I’m using this on a iPhone 11 Pro Max and every time I’m stopping my punches the force of my punch is causing me to have bruises on the palm side of my skin. There’s also the risk of throwing your phone too. I would say just because you have to hold the darn thing you should have like a estimate of how much faster your hand would have punched I you didn’t have to worry about holding your precious thousand dollar phone. The only concrete thing to learn about your punches with this app would be it’s speed but even that is 2-bit. If you can make a estimation of how much faster your punch would actually be if you didn’t need to hold it, it would be way better.

calculated chaos ,


Love this app! Although not 100% accurate I would love to see someone beat my record of 1994lbs

App Privacy

The developer, Alexander Petridi, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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