Coxswain Free App

Rated 4.86/5 (70) —  Free Android application by Sven Meier

About 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

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How to Download / Install

Download and install Coxswain version 4.7 on your Android device!
Downloaded 1,000+ times, content rating: Everyone
Android package: svenmeier.coxswain, download Coxswain.apk

All Application Badges

For everyone
Android app

App History & Updates

What's Changed
- import workouts from the App menu
- workouts and performance are filtered by currently selected program
Version update Coxswain was updated to version 4.7
More downloads  Coxswain reached 1 000 - 5 000 downloads
Version update Coxswain was updated to version 2.9
More downloads  Coxswain reached 100 - 500 downloads

What are users saying about Coxswain

by W####:

Terrific app for use with an S4 monitor. Keep up the good work!

by D####:

Now it seems it's getting nicer

by V####:

Great app, finally one that works well with Waterrower S4 and records workout data in detail. Hope the app well get more functionality in the future.

by U####:

Very useful for planning and recording workouts, I always use it. There's room for improvement but it deserves 5 stars for how much I rely on it.

by I####:

Definitely the easiest way to log workouts with the waterrower. Very reliable app

by T####:

Super functional and makes rowing more fun and easier to track. The Google fit integration is awesome but it should sync up automatically without having to manually export. Overall the interface could use some polish but functionally it's 5 stars.

by L####:

Great app

by S####:

I'm a relative newbie to rowing but an otherwise self-motivated garage gym trainer mostly doing strength training and since rowing isn't my main focus this app is ideal to guide/bully/motivate me to get the work done (the spoken instructions and sounds are excellent for this). Example: I'm typing this having literally just finished a workout where I started off thinking "nah, not today, I'll stop in at the next..." instead, thanks to this app, I improved my time and stroke efficiency over the last workout.

by G####:

Great for darkly lit room or people with poor eyesight. Keep up the good work. I'd be happy to pay for it.

by Q####:

Works well for me, and integrates well with waterrower S4 functions. If being picky I'd say it would be helpful to have granularity to ten seconds, rather than thirty seconds, and have the voice coaching the same, rather than to the nearest minute (annoying if you're doing 1'30" pieces). Also it would be useful if the distances for each set were logged. For example, if I'm doing 3' on, 3' off x6, I'd like to review the distance for each firm 3' once I've finished, and be able to target distance during the set (ie beat or maintain previous distance). The overall distance, including the recovery time, is completely unimportant. I appreciate that feeding the data into a spreadsheet can pull it out, but it would be nice to do in app, and doesn't help during the session. Or for 6x500m, present the time for each preceding 500m as I do them, and this should be stored for review and targeting. But a solid piece of kit, and a great training aid that is pretty much compulsory for waterrower owners that are training to improve on the water performance, in my view.

by B####:

I'm a beginner rower and the S4 is too sophisticated for me at the moment. Found this app, figured it out in 3 minutes, created an interval workout, plugged my phone into a USB hub and the hub to the S4. Started rowing my workout and the voice guide was gold! Exported the results to Google Fit no problem. If developer wants to create a donation link, would readily thank him. Much appreciated!!

by G####:

Works like a charm with no issues. Would be great if there was a workout report or chart that you can see your progression with.

by Q####:

Sven has responded very quickly to user suggestions. Communications with his users is exemplary.

by B####:


by M####:

Been using this for about a week and I am impressed! It's great as is but I'm looking forward to future improvements.

by P####:

Love it. Great to have something that works with a waterrower. Would love a pace boat but looking forward to making good use of this app. Thanks very much.

by X####:

Great app with steady fast paced improvements. Would love more analysis functions. Like plotting of power during pull (see Concept2), average power output during workout etc. I am using it in every workout since I discovered it.

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Rating Distribution

70 users