What's New

Now compatible with iOS 9

App Description

How strong is your WILLPower™? The Armour39™ app monitors your workout by tracking your heart rate, calorie burn, real-time intensity, and WILLpower™, Under Armour®'s unique measure that reflects overall workout difficulty in a single score. The Armour39™ app is compatible with any Bluetooth Smart Heart Rate monitor, although optimized for use with Under Armour®'s Armour39™ Strap and Module.

This app is compatible with iPhones 4S and later and optimized for 7.0.

Continued use of GPS running in the background can dramatically decrease battery life.

iPhone Screenshots

(click to enlarge)

Armour39 screenshot 1 Armour39 screenshot 2 Armour39 screenshot 3 Armour39 screenshot 4 Armour39 screenshot 5

App Changes

  • March 16, 2013 Initial release
  • May 04, 2013 New version 1.1
  • May 11, 2013 New version 1.1.1
  • October 10, 2013 New version 1.2
  • November 18, 2015 New version 1.3