Very basic but functional.
The rhythm 24 heart rate monitor seems to be a very accurate and decent product with good functionality. This app however, is extremely basic. I don’t think this app was actually intended to be used for more than its basic features. Which are to show you your heart rate, heart rate zones, battery level, software updates, basic settings. You definitely need a different app to enjoy all the functionality and features of your heart rate monitor. If you set your expectations for these basic features, the app is functional. If you expect anything more like what an exercise program is going to give you that is not what this app does.