Workout with your Concept 2, WaterRower or FluidRower rowing machine. Be guided by world-class athletes and instructors. Follow structured training programs to improve yourself and your times or just choose your own workout. asensei customizes challenges to meet your capability and pushes you to your potential.

asensei guides and monitors your practice on and off your rowing machine. 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 monitor on your rowing machine. She reads force curves, analyzes your performance and uses that to inform 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.


PROGRAMS, PERSONALIZED: there's a program for you whether it's a 2km, 6km or 30min challenge you are looking for. Designed to challenge, improve and adapted for you.

COACHING, UNPARALLELED: Say hello to the world´s best coaches. Olympic Gold Medalist Eric Murray, British Rowing, Johan Quie, Shane Farmer of Dark Horse Rowing. 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.


* Beginners - if you are new to rowing learn correct technique and be challenged as you workout.
* Intermediate rowers - refresh your skills, learn new tips, get back into the groove and take things to the next level.
* 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 compatible rowing machine:
* Concept 2 with a PM5 performance monitor
* WaterRower with an S4 performance monitor and a Bluetooth ComModule
* FluidRower with a Bluetooth console.

We connect to the Health app to monitor heart rate on some workouts.


“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 users 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."

What’s New

Version 1.17.0


The post-workout sharing screen data is now more consistent with the entries in the Concept 2 Logbook.

The first workout stats card now displays only the 'active rowing' part of the workout and doesn't include rests, warmups or cooldowns. This means it reflects the 'performance' part of your workout rather than the overall session. This is consistent with the Concept 2 workout summary. Details below:
* TIME - duration of your rowing during the active rowing part of a workout
* AVE SPLIT TIME - your average split time during the active rowing part of a workout
* DISTANCE (M) - distance rowed during the active rowing part of a workout
* CALORIES - calories burned during the active rowing part of your workout.

Overall session details are still captured and broken out on a second stats card.
* OVERALL TIME is the total duration rowed in the workout, including active rowing and rowing during rest periods, warmups and cooldowns.
* OVERALL DISTANCE is the total distance rowed in the workout, including active rowing and rowing during rest periods, warmups and cooldowns.
* REST TIME - is the time rowed during your workout, but excluding the active rowing - so this is your time spent in warmups, cooldowns and rowing in rest periods.
* REST DISTANCE - is the distance rowed during your workout, but excluding the active rowing - so this is your time spent in warmups, cooldowns and rowing in rest periods.

A third stats card shows some additional stats for your session. These are for the active rowing part of the workout only, not for the rests, warmups or cooldowns.

A 4th stats card is similar to the first stats card, showing details of the active rowing, but displays drag factor instead of calories.

Note that you may still see some discrepancies between the data shown on these cards and the PM5 since asensei does not reset the PM5 at the start or the end of a workout session. asensei does not capture any meters/time rowed outside a workout, even if the app is open.

Ratings and Reviews

4.8 out of 5
2.4K Ratings

2.4K Ratings

Ash Majumdar ,

In the words of Huey Lewis - “I want a new drug”

Yes, after two sessions I can’t wait to get on my rower again. I just bought my first rower Concept2 during this pandemic. I tried it at the gym but wasn’t really thrilled. I looked at the Hydrow, which though is beautiful , but is heavy and had way to many workout choices. I couldn’t see my saying commuted to a monthly pay service until I found Asensei. Once I got my rower it sat there for a few days. I read the manual and lethargically tried to play a game. I was looking for a coaching experience like the hydrow on a lake and then I found Asensei. I thought I will give it a try. I tried it for the first time last night and when Eric said that try rowing three times a week, I was like no way, I am coming back tomorrow before I go to the gym. Great app. Yes the pairing was confusing as my iPad was already connected to ErgData, but I figured it out. Same goes for how to find settings such that I know how to upload to Concept2 logbook. The chat setting is not the most intuitive but once you figure it out. It is okay. I will be signing up soon :)

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.

Contented Reader ,


Two years ago, my husband and I bought a rower as our Christmas gift to one another. I used it faithfully for about a month and then didn’t really use it again until late the next summer when my two young boys cleaned my clock climbing our local mountain. Determined to get in shape after years of chasing after little kids and not exercising, I returned to the rower. It wasn’t until I heard about and started using asensei though that I truly started using the rower in the best way. As a mom of those two little boys who works and has a small farm, I don’t have the mental energy to design a workout plan. Asensei does that for me. The coaching is great! I love all the options and access to multiple coaches. This is the only exercise plan I have ever stuck with. I am set to hit my million meter mark just after the new year. I think asensei is definitely worth the price and their customer service is awesome!

Developer Response ,

I can't tell you how much we love this review; we're passing it around the team today as it's such an incredible motivator for us when we know that we're playing a part in helping people find joy in the reward of effort through coaching, especial

Congratulations on the upcoming million meters. We'd love to cheer you across that finish line!

Reach out to us at - we'd love to reward your effort and retell your story!

Keep on keepin' on!

App Privacy

The developer, ASensei Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Purchases
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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