Workout with your Concept 2 rowing machine and be guided by world-class athletes and instructors. asensei tunes challenges to meet your capability and pushes you to your potential.

Introducing a new connected coaching app that lets world class coaches guide and monitor your practice on a Concept 2 rowing machine. asensei for rowing allows athletes to commit to engaging and effective coaching programs created and delivered by world-class athletes and coaches. More than a workout, this is a series of lessons - build strength and fitness alongside skill and technique as you are guided, monitored and corrected through these programs by your very own personal coach, asensei.

asensei talks to the performance monitor on your Concept 2 rowing machine. She reads force curves. She analyses your performance and uses that to inform your practice. To inform the intent of your practice. Are you losing power at higher stroke rates? Are you losing length when you’re tired? Do you find it hard to hold lower stroke rates consistently? Are you rushing the recovery? Compensating for poor leg drive with over-use of your arms?

asensei knows. And she’ll be sure to let you know.

Practice. Perfected.


ROWING, PERFECTED: row better, sooner. Every stroke, asensei analyses your performance and assesses your form. She coaches expertly and programs perfectly.

COACHING, UNPARALLELED: Say hello to the world´s best coaches. They set the work; asensei makes it work for you. Watching, responding, adjusting, encouraging - just as they would.

ANALYSIS, DELIVERED: Row - record - watch - rewind - remember. The old ways are over. asensei watches you move, as you move, responds in the moment and evaluates over time.

YOUR TEAM: Shatter a PB. Lead your crew. Make the games. Whatever training means to you, asensei will assemble the experts. Structured around your life, paced according to your progress, and with specialists on hand when you need them - every single session, every moment, every input is specific to you.


* High-school or college athletes who wish to get win a seat in the boat, get recruited, or compete nationally and internationally.
* Indoor Rowers or Crossfit (TM) athletes who wish to improve their indoor rowing technique and scores.
* Those who want to get fitter and stronger with the excitement of a studio fitness class and the attention of a personal trainer


* Requires a Concept 2 rowing machine with a PM5 performance monitor


“I was fortunate enough to have great coaches from the very beginning of my rowing career. This meant I wasn’t taking thousands of bad rowing strokes, ingraining bad habits. The potential for asensei to provide quality feedback before bad habits are formed is really exciting", Helen Glover, 2x Olympic Gold Medallist and World #1 Rower.

"Just when you thought (sports) technology couldn't get any cooler, along comes asensei", CBS Television

"... the next frontier in the fitness tech revolution ... a wildly ambitious goal ... able to guide you through everything from form and recovery to metrics and goals while improving your individual results ... future of personal training", Men's Health

Here's what beta testers had to say:

"someone keeping an eye on you the whole time is really cool because ... it keeps you honest, keeps you on track in a way that I don't think a coach normally can unless you are doing a one on one session, so it was the benefit of a one on one, with the class dynamic, which I really like!"

"It's a cool product. I've never ever seen anything like that. In 5 minutes I learned how to row, I thought I was doing it right, but I wasn't"

"(asensei) said don't worry there's a bunch of exercises I'm going to give to you afterwards that are going to help you on that. ... that's amazing. ... this is not just about now, it's like building a relationship."

We connect to to monitor heart rate on some workouts.

What’s New

Version 1.12.1

This release includes some incremental fixes to improve the reliability of workout uploads and some additional logging.


You can now set your weight class in the asensei app and have that push to the Concept 2 logbook automatically. Your drag factor for each session will also be sent.

We’ve made the session history screen more discoverable, you can now jump there using the on-screen arrow icon.

Jump straight to your Concept 2 logbook entry from the session history page so that you can more easily review your workout performance stroke by stroke.


In the spirit of Kaizen, continuous improvement, we’ve made various bugfixes and improvements including for the Heart Rate display flickering seen by some users, we now send your heart rate data Apple Health correctly, have made adjustments for iOS 14 compatibility and have reduced the amount of storage the app requires.


Exclusively for our form coaching cohort we continue to make improvements as we learn. (App)arel purchase required.

Ratings and Reviews

4.8 out of 5
998 Ratings

998 Ratings

Lholleran ,

Terrific coaching, super high quality

I’ve had a Concept 2 tower in my basement for about a year, and while I’ve had fun hacking around on it, I knew there was more to rowing than my clumsy efforts. I just didn’t know how I would learn. As a former division 1 athlete (in a field sport, not in rowing!), I am used to being coached and am motivated by feedback and improvement. I was skeptical that an app could provide the coaching and feedback necessary for true form mastery (that might be an overstatement at this point, but I am getting there!) and performance improvement, but Asensei truly makes it happen. I am so impressed and delighted. Watching Eric through the workouts makes it easy to mimic good form and figure out where I have hang ups. He is a wonderful mix of low pressure and high motivation. This is truly an excellent stand-in for having an actual coach and an actual team to train with. It has made me want to try this out on the water! Thanks so much for delivering such a high quality experience.

Zeusman56 ,

This is great

Stuck at home under virus lockdown, I was looking for a way to get some cardio without making my knees worse, so I decided to get a rowing machine. Found asensei in the App Store, and decided to give it a try. It is fantastic—so well done, and what a gift to have a world class athlete coaching you every step of the way. I think good for both beginners (like me) and experts. The Bluetooth link to my rowing machine works perfectly and allows the app to track my progress and adjust accordingly. Eric Murray is a natural teacher, communicates exactly what to do and in a very pleasant, encouraging way. It’s a freemium model, but I immediately signed up for the one year paid program as soon as I completed the free portion. I can’t imagine doing this without asensei, especially as a newbie who needed to learn how to do things properly. This is a 5+.

The Glacier ,

I thought I knew how to row

After having my rower for about a year now, I would hop on twice a week and try to beat my previous 2k time. I didn’t think there was much more to it, but after just doing a 20 min session at 20 strokes per minute, I feel like I got a great workout and was able to actually focus on good technique. This is a fantastic program and I can’t wait to see where I’m at after this 6 week program and then try some of the other workouts. I’m also pretty impressed that this level of live coaching is free. The only complaint I have is not being able to select my own music. I could turn on an external radio/speaker, but somehow being able to do that within the app or alongside it would be fantastic. This is a really cool app, and Eric is a great and effective coach.

Developer Response ,

We're pleased that you're enjoying Eric's coaching, and that asensei has opened your eyes to the discipline of practice and improvement at indoor rowing! We can't wait to hear how much time you knock off your 2k by the end of the program!

We strongly prioritize our roadmap with customer feedback, and have raised the importance of allowing you to have your own music selection integrated in the app, so that the volume dips when asensei or Eric speak to you. In user testing, more people told us they didn't want to mess with playlists and just wanted to sit down and row, but since then many have told us they'd love to play their own music.

We'd love to know what would be better for you - integratinon with a music service like Spotify, Pandora or Apple Music, or whether you would prefer to play music that you have locally on your phone?

We appreciate the 5* review, and will work hard to continue to deserve it.


ASensei Inc
99.8 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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