Comparison

asensei rowing vs NK Logbook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Personalized training programs
  • World-class athlete coaching
  • Real-time performance analysis
  • AI-driven technique correction
  • Hundreds of guided workouts
  • Compatibility with major rowing machines
Read full description

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."

About

NK Logbook

This app pairs with compatible GPS devices to import, review, and analyze session data. It also streams live performance measurements for coaches and spectators, offering real-time insights into rowing performance and location.

Highlights
  • Import session data from compatible devices
  • Review and analyze boat metrics and stroke profile
  • Stream live performance measurements
  • Real-time location tracking for safety and spectator viewing
  • Team management for coaches and athletes
  • Compare live data from multiple boats
Features
Read full description

NK LiNK Logbook pairs with your CoxBox GPS & SpeedCoach GPS/SUP/OC with Training Pack to (1) import session data for review and analysis and (2) stream live performance measurements to NK's public online viewer at logbook.nksports.com. QUICK AND EASY TO STORE SESSION DATA Pair with your NK device using Data LiNK mode to import session memory to your secure account. REVIEW AND ANALYZE SESSION PERFORMANCE Quickly find and select sessions from the calendar view. Review your course overlayed on a map. Check boat metrics for any or all of the session. Get a clear understanding of your rowing style by viewing your stroke profile. QUICK AND EASY TO STREAM LIVE DATA Pair with your NK device using Live Stream mode. Keep the paired phone and NK device together on the water while training or racing. SAFETY ON THE WATER Coaches, family, friends and spectators can view your location on the map viewer. Just scan the map viewer or boat list to locate any streaming boat. TEAM SUBSCRIPTIONS Assign Coaches and Athletes to your team for easy data sharing Privately stream live performance data to your assigned team coaches Simultaneously compare live streaming data from multiple boats ESSENTIAL COACHING TOOL Coaches can view real-time location and performance measurements during workouts in order to provide more effective feedback. All performance measurements in the NK device are available in the live viewer, so coaches can select which measurements to monitor during each session. IMPROVED SPECTATOR EXPERIENCE Spectators and coaches can view real-time position and performance measurements during an event (please check with the regatta officials regarding the legality of cell phone use during a race). With all entries streaming their data, spectators can see who's ahead by how much - all in real-time! REQUIREMENTS - Compatible with CoxBox GPS, with firmware version 1.00 or higher. - Compatible with SpeedCoach GPS 2, SpeedCoach SUP 2 and SpeedCoach OC 2. Training Pack is required, with firmware version 2.19 or higher. - Mobile device must have Bluetooth 4.3 or higher, and must have Bluetooth peripheral service. - Mobile device must have cellular service. - Mobile device must have iOS 10.0 or higher (iPad 4 and higher/ iPhone 5 or 5c and higher)

Screenshots

asensei rowing4 screens
NK Logbook4 screens

Verdict

The call

The clearest difference is rating: asensei rowing at 4.8 against NK Logbook's 3.8. asensei rowing also leads on in-app purchases (none vs 4) and ratings volume (4.1K vs 12). NK Logbook's advantage is ads (none vs shown). On price, update cadence, monetization model and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NK Logbook sells 4 in-app purchases, starting at $9.99 per month. asensei rowing asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

asensei rowing holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: asensei rowing has 4.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 76% of asensei rowing's written reviews are positive against 63% of NK Logbook's.

UpkeepUpdate frequency

asensei rowing ships an update every 2 months, NK Logbook every 4 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
asensei rowing versus NK Logbook: the parameters behind the verdict, then further details
Parameterasensei rowingNK Logbook
PriceFreeFree
Rating4.8 (4.1K ratings) — better3.8 (12 ratings)
Positive reviews76.2% of reviews — better62.5% of reviews
Number of ratings4.1K — better12
Update frequencyEvery 2 months — betterEvery 4 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size95 MB57 MB
Age rating4+4+
DeveloperASensei IncNielsen-Kellerman Co.

Customer experience

asensei rowing

All ratings4,030 ratings
Positive95.8%
Neutral1.7%
Negative2.5%
Written reviews206 reviews
Positive76.2%
Neutral9.7%
Negative14.1%

NK Logbook

All ratings12 ratings
Positive66.7%
Neutral8.3%
Negative25.0%
Written reviews8 reviews
Positive62.5%
Neutral0.0%
Negative37.5%

Bugs and requests

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

NK Logbook

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

asensei rowing

No in-app purchases

4 purchases

NK Logbook

Subscriptions4
  • Monthly Coach Subscription14 Days trial$9.991 Month
  • Monthly Team Subscription14 Days trial$74.991 Month
  • Annual Coach Subscription14 Days trial$99.991 Year
Show 1 more
  • Team Yearly Subscription14 Days trial$749.991 Year

Questions

Is asensei rowing free?
asensei rowing is free to download, with no in-app purchases.
Is NK Logbook free?
NK Logbook is free to download, with in-app purchases available.
Which has better reviews, asensei rowing or NK Logbook?
asensei rowing is rated higher. asensei rowing averages 4.8 out of 5 from 4.1K ratings, while NK Logbook averages 3.8 from 12 ratings.
Do asensei rowing or NK Logbook have ads?
asensei rowing shows ads; NK Logbook does not.
Which is updated more often, asensei rowing or NK Logbook?
asensei rowing ships an update every 2 months, and NK Logbook every 4 months. Most recently, asensei rowing was updated on October 23, 2026 and NK Logbook on October 25, 2026.

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