name of ipad app featured in the ipad apps video at the apple special event on the 22nd of October

[tol8u]

Hello,please i have been trying to fin the names of of some apps. these apps were featured at the last apple special event on the 22nd of October 2013 in a video presented by Tim Cook- the video was showing apps ipad users use their ipads for. i m particularly interested in the app that showed a "figure skater" and the app was used in measuring the angle on the skaters body. do help checkout video and comment with the name of the app. thanks for your expected help fellow forum members.
p.s: i need the app as part of a school project. and posted below is a youtube link to the said video

Apple - Life on iPad - YouTube

 

[iOS Gravity]

The name of all the apps are in the description.

 

[anon(4698833)]

It's called the Dartfish Express app...and is featured in this article (btw...that's speed skating, not figure skating )

Apple - iPad - Life on iPad - Finding the extra edge