Coxswain is a free Android app developed by Sven Meier that helps you organize your rowing workout. The app connects to your Waterrower and allows you to choose your training program. You can record your workout while watching Youtube videos or other media. The app also allows you to row against your previous workouts, which is an excellent feature for those looking to improve their performance.

With Coxswain, you can adjust the workout display by long-pressing to choose from distance, duration, strokes, energy, speed, pulse, stroke rate, stroke ratio, time, split, average split, delta distance, delta duration. The app also lets you export your workout to TCX (Training Center XML) to import it into your favorite fitness tracking App or service, your calendar, or Google Fit (experimental). You can also read heart rate from your Waterrower, Android sensor, or a connected Bluetooth LE/Ant+ device, which is an excellent feature for those looking to monitor their heart rate.

Coxswain is easy to use and has an intuitive interface. The app is under development, and the developer encourages users to report problems and ideas to their Github page. If you're looking for a comprehensive rowing companion, Coxswain is an excellent choice.