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  • #: 200430
  • Price: free ($0.00) In Apple Store
  • Category: Sports
  • Updated: 2012-12-25
  • Current Version: 1.2.2
  • 1.2.2
  • Size: 0.30 MB
  • Language: English
  • Seller: Sergey Petrov
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.1 or later
  • © Sergey Petrov, Andrey Morozov
  •  Add to Favorite apps



This application will rate your skiing/riding skills, track your runs, show your progress. It will monitor your speed, acceleration and air time. You can see your actual ski time and total distance. Based on accelerometer measurements it gives you your turn performance index. The higher the index, the better your turns are.

Why you need it

If you are one of those snow sports enthusiasts who would like to attach a number to their achievement on the slopes, track their progress, compare to friends, check out the SnowEdge app.

How does it work

The basic question we attempt to answer here is what constitutes good skiing/riding. Obviously, the answer is not universal and is a matter of personal preference. Common answers:

- go faster

- make dynamic turns

- catch that air

These are the aspects we attempt to capture and quantify in the first version of the SnowEdge app.

We strongly advise against trying to go with supersonic speed outside of a closed race course. Our personal preference (at least outside of trees and powder) lies with making nice dynamic turns. We designed a measure called Turn Acceleration Index (TAI) to track one’s progress in recreational skiing/riding. This measure is based on the lateral acceleration during the turn. Adding this acceleration to the gravity, we get full acceleration (g-force). Each TAI number is calculated taking into account your motion pattern in the last five seconds, which means two to four turns. In simple words, the higher the TAI is, the better.

How to use the app

Simply start the app and put the iPhone or iPod in you pocket. The screen will stay on, as necessary for continuous usage of accelerometer. Please do NOT lock the device pressing the button on top - this will disable accelerometer. This is it. Your runs will be automatically detected and saved in the memory. You can check the current statistics any time on the home screen without unlocking it. The best time to analyze details of the last few runs is while you sit on a slow chair lift (if it's not too cold) or in front of a fireplace with a cup of tea a bit later. If you receive a message or a phone call, we recommend to restart SnowEdge app afterwards.

Battery saving tips

In our experience, using GPS is the biggest power drainer. Another important factor reducing battery capacity is cold. Acting together, these guys will deplete a full battery in a couple of hours. We like to use the app throughout the day, so we learned a few tricks. Some of these may be useful even without our app.

Keep the device in a warm inside pocket. Put a paper towel in the same pocket next to it. This may also help to keep it dry.

Reduce screen brightness!

Switch off GPS if you are not too interested in the speed tracking. All other aspects of the application will work fine without it. We recommend using speed tracking early in the morning on an empty run, especially if you are planning to go very fast. (This keeps innocent bystanders safer). After setting a record or two, turn the GPS off and enjoy more battery power.

Turn off WiFi and 3G

You can find more information at www.kofesmolot.com/iPhone/snowEdge

What's New in Version 1.2.2

Support for iPhone 5 and iOS 6

iPhone Screenshots

snowEdge iPhone Screenshot 1
snowEdge iPhone Screenshot 2
snowEdge iPhone Screenshot 3

Video Reviews

No video review.

Customer reviews

Write a Review

Rated 4/5 based on 3 customer reviews.


4/5 stars

Great app!

I got this to track my runs and how fast I go. I could care less about the turn rating, I know my carving is awesome. It would be cool to see what my max g-forces achieved were. Only cons are that it exits the app if someone calls or texts you (that's probably an apple thing) and it does run down your battery. I recommend dimming your screen while it's running. I'd like to turn off the turn tracking and be able to screen lock my phone. All in all it's totally awesome and it's FREE

5/5 stars


I've been looking for an app for this for a long time! I love how I'm able to measure my TAIs! Thank you for this killer app!

5/5 stars

This app is astonishing and very useful!

SnowEdge turns your iPhone into a totally awesome pocket ski run recorder and analyzer! 

You run this app, put it in your warm pocket, and just ski! 

It's incredible to see your rating of how fast you went, how well you turned, and how long your jumps got airtime. You also get an awesome speed/gForce graph of each run.

I had so much fun trying to go faster and set a new top speed or to turn better and earn a better rating. The app keeps a beautiful list of previous runs to quickly compare at a glance

This app is a revolution for skiers with iPhones!

Every skier needs to try this and see what their rating is. Just dont fall on your iPhone!!!

Ps: my fully charged iPhone4 used 40% of it's battery over 4 hours of SnowEdge tracking with all features enabled. Not bad at all. But put a paper towel in your pocket to try and keep your iPhone as dry as possible...


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The information may be outdated (2017-03-08 16:48:07). For actual information go to iTunes

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