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Coxswain

Coxswain helps you organize your rowing: Connect your Android device to your Waterrower and choose your training program.

- record your workout while watching Youtube videos or other media (choose an intent to be executed on training start)
- row against previous workouts
- adjust the workout display (long press to choice from distance, duration, strokes, energy, speed, pulse, stroke rate, stroke ratio, time, split, average split, delta distance, delta duration)
- export your workout to TCX (Training Center XML) to import it into your favorite fitness tracking App or service.
- export your workout to Google Fit (experimental)
- read heart rate from your Waterrower, Android sensor or a connected Bluetooth LE/Ant+ device

You'll need


- a USB On-The-Go (OTG) capable device
- a USB-OTG adapter (USB-A/female to USB-micro/male for the cable which came with your Waterrower, or USB-mini/male to USB-micro/male)
- Waterrower with S4

This app is under development. Please report problems and ideas to https://github.com/svenmeier/coxswain

Category : Health & Fitness

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Reviews (21)

Eug. M. May 30, 2020     

Workout finishes unexpectedly and I have to restart it. It happened 3 times after I installed the app. I had planned to do 45' workout with intervals, and the app decided to finish it after ~1000mts (that was not the segment I had programmed). No reason, I cannot find any help file to check if there is a configuration set that is causing this. Liked the app, but is not giving me good results

Ric. T. Mar 18, 2022     

Awesome app. Connects to water rower with USB. Only extra which would make it 5 star is direct export to strava, so I dont have to keep locating the file and entering details into strava. Otherwise... Best rowing app out there.

Gle. F. Mar 24, 2020     

Worked wonderfully up to about 2 months ago, and then suddenly my phone stopped recognizing the Waterrower. This lack of functionality seems to have coincided with the last app update. But if it works with your phone/rower still, it's worth a download and try.

Rob. B. Jan 21, 2021     

Does just what I need so far. No problems connecting, collects the data ok, and I can see the screen clearly in low light (unlike the LCD screen on the S4). Would be cool with some kind of flappy bird mini game built in.

Lar. F. Mar 26, 2020     

Excellent coding! Super easy to use, many features. I was very frustrated with the original rowing software and now very happy to have found this app. Thank you!!

Jam. H. May 22, 2021     

After several frustrating unsuccessful attempts to get the official Waterrower Connect app working with my Google Pixel Slate, Coxswain worked immediately and continues to connect reliably! To my delight, there is a dark mode in the settings and the source code is open on GitHub.

And. T. Jun 13, 2020     

Please make workout resolution more flexible. Time is adjustable by 30sec increments. Tabata workouts have only 20sec "on" so technically you cant even set up Tabata intervals. Being able to type in distance rather than scroll would be helpful to allow 250m distance rows instead of 300m rows for intervals. Good stats from workouts is a plus. Same goes for HRM connectivity.

Ste. K. Mar 20, 2021     

Have been a fan, but latest update crashes out of the app on ending a piece. Other mods look great, and clearly will be 5 start once bug fixed.

Mat. C. Aug 12, 2020     

So I've edited this review as the update has now stopped the issue with premature stopping of workouts so this app is now definitely a must for the waterrower.. although still have to upload tcx files manually to strava!!

Chr. R. Aug 1, 2020     

The developer has finally resolved the problems that plagued the app. No more premature quitting. I use it every day with the S4 Commodule. Thank you.

Isa. Z. Feb 5, 2020     

I cant get the water rower to connect via the bluetooth or directly through usb. Not sure what I could be missing but it sure is frustrating.

Oli. B. Dec 22, 2020     

Works well with existing set up. Not working if I modify existing programs. As example I change 2000 m programme to 3500m and not working anymore. Use first degree fitness rower.. could you fix this?? Thx

Zac. H. Sep 1, 2020     

Best app I've found so far for my WaterRower. I haven't found much else that connects via the USB port. Thanks!

Ala. P. Jan 18, 2021     

Just downloaded this and am anxious to explore its features. If I want to create a 5000 meter custom program, do I just add the 1000 meter default program 5 times to mine?

Cri. V. Oct 13, 2019     

Offers great metrics on your phone. If it would only read heart rate from Garmin watches and sync with Strava or Garmin connect automatically.

nix. d. Sep 1, 2020     

This app is very good to be used with the Waterrower and the developer responds very quickly to questions. Wiki user guide is now available on github.

Car. P. J. May 2, 2021     

Same as what others say the newest update keeps crashing the app was 5 starts

Rob. L. R. Oct 27, 2020     

Please fix workout export to tcx on android 11, now it failes.

A. G. u. Nov 14, 2018     

Will not connect to waterrower

Cha. L. Dec 27, 2020     

Best app for WaterRower owners

Gen. B. Apr 3, 2018     

I'm not seeing what other reviewers are seeing. I find it not particularly functional. The pre-programmed workout programs work but I cannot edit them. It will not let me edit the duration of the 10 minute workout and it is super aggravating to have it quit after the 10 minutes have expired. I see where I can have it continue after the selected program has expired but I would like to set the duration to 30 minutes. Even if I add a new program for duration, the app defaults to 30 seconds and doesn't allow for me to edit. I have been unable to find any user guides anywhere and nothing in the program seems to be intuitive. Sorry. I appreciate that it is free but I would rather pay for something that worked, than have something for free that does not.