Erg Data is the free companion app for Concept2 machines. The app allows you to track your progress, as well as create your own custom workouts and displays for your workouts. You can also create Real Time Loops, which allow you to work out on a shared virtual course with your friends. There isn’t a library of workouts, but Concept2 does publish a workout of the day. The app is compatible with Apple Watch, Garmin, and Strava.
Customer reviews for Erg Data are positive. They like the updated interface, sharing that it feels more modern. Users liked that they could transfer workout data from their machine to their phone. Some users reported that the app can be buggy and sometimes they would lose workout data because their phone would disconnect before the workout data was saved.