ErgData vs asensei rowing
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ErgData
This app acts as a personal training partner for Concept2 equipment. It allows users to set up custom workouts, view real-time stats, track progress, and sync data with online platforms. It also offers workout of the day challenges and detailed post-workout analysis.
- Custom workout setup
- Real-time workout stats
- Progress tracking
- Sync with Concept2 Logbook
- Workout of the Day
- Post-workout analysis
- Apple Watch compatibility
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ErgData from Concept2 is your personal training partner. Set up workouts from your phone or tablet, view customized stats and information during workouts, track your progress, sync with the Concept2 Online Logbook, take part in the Workout of the Day and much more. Features -Set up workouts from your phone, making it simple to create even the most complex of interval workouts. You can choose to store workouts as favorites or rerow past efforts straight from ErgData. -Set the Concept2 Workout of the Day on the monitor with a single tap. -Compatible with the Apple Watch. Watch users can now see real-time heart rate data on the screen during the workout and in analysis afterwards. -Choose from different workout display options, including small, medium and large data screens, a pace graph screen, an interval and split table or a pace boat. Easily swipe between screens during your workout. Customize the data shown to suit you. -Syncs with the Concept2 Online Logbook, making it easy for you to take part in our many challenges. From the Online Logbook, your workouts can get sent to platforms such as Strava, Garmin Connect or Training Peaks. -Detailed post-workout analysis helps you know exactly what happened during your workout. See all your interval and split data, as well as pace and rate graphs, plus how long you spent in each heart rate zone. -Optional voice guidance to send audible workout data and results. Technical Specifications -Compatible with the PM5. -Compatible with the Concept2 RowErg, SkiErg and BikeErg -Connects to Apple Health -Connects to PM5 via Bluetooth only Note: Please do not have a USB stick in the PM5 at the same time as using ErgData, as this may prevent workouts being saved.
asensei rowing
Enhance your rowing performance with guided workouts from world-class athletes and AI coaching. Connect to compatible rowing machines for real-time analysis and personalized training programs designed to improve your technique and fitness.
- Personalized training programs
- World-class athlete coaching
- Real-time performance analysis
- AI-driven technique correction
- Hundreds of guided workouts
- Compatibility with major rowing machines
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Workout with your Concept 2, Rogue Echo, 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 rowing guides and monitors your practice on and off your rowing machine. Hundreds of workouts, no need to plan - get a recommendation every time! Structured programs - build strength and fitness alongside skill and technique as you are guided, monitored and corrected by great coaches assisted by your personal AI coach, asensei. asensei rowing talks to the monitor on your rowing machine, 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. FEATURES: 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: Some of the world´s best coaches. Olympic Gold Medalist Eric Murray, British Rowing, Johan Quie, Shane Farmer of Dark Horse Rowing. Watching, responding, adjusting, encouraging - just as they would live. ANALYSIS, DELIVERED: Row - record - watch - rewind - remember. asensei watches you move, as you move, responds in the moment and evaluates over time. PERFECT FOR: * 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. * Getting fitter and stronger, the excitement of a studio fitness class and the attention of a personal trainer REQUIREMENTS: Requires a compatible rowing machine: * Concept 2 with a PM5 performance monitor * Rogue Echo Rower with Bluetooth * WaterRower with Bluetooth S4 monitor, S4+ComModule or NEW PowerPulley Performance Ergo * FluidRower with a Bluetooth console. We connect to the Health app to monitor heart rate on some workouts. WHAT PEOPLE ARE SAYING: “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."
Screenshots
Verdict
The clearest difference is ads: ErgData at none against asensei rowing's shown. ErgData also leads on monetization model (free vs free with in-app purchases) and update cadence (every 2 weeks vs every 2 months). asensei rowing's advantage is review sentiment (76% vs 45%) and iOS requirement (14.0 vs 16.0). On price, rating, ratings volume and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for ErgData against 4.8 for asensei rowing. Both are backed by a comparable volume of ratings — 5.1K and 4K respectively. Written reviews are what separate them: 45% of ErgData's written reviews are positive against 76% of asensei rowing's.
ErgData ships an update every 2 weeks, asensei rowing every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | ErgData | asensei rowing |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (5.1K ratings) | 4.8 (4K ratings) — better |
| Positive reviews | 45.4% of reviews | 76.2% of reviews — better |
| Number of ratings | 5.1K — better | 4K |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 74 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Concept2, Inc. | ASensei Inc |
Customer experience
ErgData
asensei rowing
User reviews
ErgData
From 5.1K App Store ratingsWhat we love
- 🚀 Great app
- 👍 Excellent stats
- 👍 Easy to use
- 👍 Seamless sync with Concept2 logbook
- 👍 Customizable heart rate zones
Room to improve
- 🐛 Connection issues with PM5
- 🐛 Unreliable heart rate monitoring
- 🐛 Sync issues with Apple Health
- 🐛 Crashes and data loss
- 🐛 Frequent disconnections
asensei rowing
From 4K App Store ratingsWhat we love
- 👍 Great coaching and feedback
- 🚀 Seamless integration with Concept 2 rower
- 💡 Personalized workouts and performance tracking
- 🤩 Motivating and engaging experience
- 🌟 Excellent customer support
Room to improve
- 🐛 Occasional connectivity issues
- 🕹️ Unintuitive user interface
- 🕰️ Slow workout downloads
- 💾 Limited data tracking and export options
- 🔇 Music volume issues
Bugs and requests
ErgData
Reported bugs
6 issues- Workout data not saving
- Heart rate data freezing
- Disconnects during workouts
- Sync issues with Apple Health and Strava
- Login issues and frequent logouts
Show 1 moreShow fewer
- Incompatibility with older firmware versions
Requested features
8 requests- Add friend mode
- Integrate Apple Watch support
- Add manual workout entry
- Implement landscape mode for iPad
- Integrate pace calculator
Show 3 moreShow fewer
- Add recovery heart rate tracking
- Display METS data
- Allow custom heart rate zones in logbook
asensei rowing
Reported bugs
3 issues- Inconsistent pace and split time calculations
- Workout history not saving properly
- Bluetooth connectivity problems
Requested features
5 requests- Ability to select and customize workout programs
- Integration with Apple Health and Strava
- More detailed performance analytics and progress tracking
- Live/virtual rowing classes and competitions
- Support for more rowing machine models
In-app purchases
ErgData
No in-app purchases
asensei rowing
No in-app purchases








