This app could be so much better
Why dont you pull in heart rate data from the Apple Health app? My Apple Watch takes a reading almost every ten minutes. I have lots of data points in the health app but its kind of useless because its not organized or in a user friendly format. You could take all of these readings and give great readings and feedback to the user. You would even be able to categorize the heart rate data with notes because workout heart rate data points are seconds apart. This would let you know heart rate during workouts, heart rate after the workout out and resting heart rate. Lots of potential!
Whatthewhatisthat about
Runtastic Heart Rate Monitor