Originally Posted by k7
Any experience with these apps, the add-on device and battery life?
Nope. I had an iPhone and used MapMyRide for a couple years then dumped ATT asap and switched to Android and Strava, which really doesn't do ANT except on a few phones. About the time I went from casual metric century rider to "I'd like to be able to keep up with my fast friends," I picked up a Garmin Edge 500 and that was my first HRM experience. The Garmin will run for a couple of loooong rides before it needs a charge and the sensor batteries seem to last as long as any other cyclometer sensors.