Comparison

NK Logbook vs RowIQ | Rowing & Erg Coach

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

Head to head
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)

About

RowIQ | Rowing & Erg Coach

This platform connects to rowing and cycling machines via Bluetooth to automatically log workouts. It provides athletes with live performance data, historical analysis, and readiness scores. Coaches can monitor team progress, build training plans, and review technique videos.

Highlights
  • Bluetooth PM5 connection
  • Live performance metrics
  • Full workout history
  • Readiness scoring
  • Strava & Concept2 Logbook export
  • Coach training plan tools
  • Athlete technique video review
Features
Read full description

RowIQ is the rowing training app that connects to your Concept2 PM5 over Bluetooth. Log every stroke on the RowErg or BikeErg, see your force curve live, and get coaching built on your own data. Athletes train smarter. Coaches see the whole squad live. CONNECTS TO YOUR CONCEPT2 • Pairs with the PM5 monitor over Bluetooth — RowErg and BikeErg • Live split, pace, watts, stroke rate, distance, calories and heart rate • Load a planned workout onto the PM5 with one tap, or just row • The monitor is the source of truth: your debrief matches the PM5's own summary SEE THE SHAPE OF YOUR STROKE • Force curve drawn live on every stroke (RowErg) • Shape a target Optimal Force Curve and row against it with a live accuracy score • Debrief: your average curve vs. target, peak timing, stroke length and a cue for next time VIRTUAL COXSWAIN • Set a goal split, a stroke rate, or both before you row • Spoken pace calls tell you the split to hold, easing off when you're ahead and picking up when you fade • Works on single distance or time pieces on the RowErg AI COACH • Ask a coach that has your training history in front of it • Smart Plans: a personalised training plan from your goal, 2K, race date and weekly availability • Readiness from Apple Health — HRV, resting heart rate and sleep — combined with training load • Plain-English insights after every piece and weekly recaps TRAIN AND TRACK • Coach-assigned, built-in, self-built and AI-generated plans on a calendar • Full history with splits, stroke trends and force curves; personal records by distance, time and interval format • Fitness vs. fatigue, weekly effort and progress trends • Lift tracking, Erg Engine stroke video analysis, friend races and a community meters leaderboard SYNC EVERYWHERE • Automatic upload to the Concept2 Logbook with per-split and per-interval data • Strava export with the full stream • Bluetooth heart-rate straps and armbands connect directly to RowIQ FOR COACHES • Link athletes with an invite link or coach code • Live race board: every athlete's split, rate and force curve in real time • Build and publish training plans, push a workout straight to an athlete's erg • Team roster with readiness, weekly meters and compliance; Film Room technique video review • Coach web dashboard at rowiqapp.com COMPATIBILITY Concept2 PM5 over Bluetooth on the RowErg and BikeErg. The SkiErg and the older PM3/PM4 monitors are not supported. Requires iPhone with iOS 17 or later. APPLE HEALTH RowIQ reads HRV, resting heart rate and sleep from Apple Health to calculate daily readiness. Your health data is never used for advertising or shared with third parties. SUBSCRIPTION RowIQ is free to download and use for basic workout logging. RowIQ Premium unlocks the AI coach and Smart Plans, Virtual Coxswain live coaching, advanced analytics, the Optimal Force Curve comparison, premium training plans, video review and the full weekly calendar. • Monthly and annual plans available RowIQ Premium subscription terms: Eligible new subscribers may receive a 7-day free trial for RowIQ Premium. After the free trial ends, the subscription automatically renews at the price shown at purchase unless canceled. RowIQ Premium is available monthly or annually. Payment is charged to your Apple ID account at confirmation of purchase or, when a free trial applies, after the free trial period ends. To avoid being charged, turn off auto-renewal in your Apple ID Account Settings at least 24 hours before the end of the free trial or current subscription period. Subscriptions, renewals, cancellations and refunds are managed by Apple. Terms of Use: https://rowiqapp.com/terms Privacy Policy: https://rowiqapp.com/privacy

Screenshots

NK Logbook4 screens
RowIQ | Rowing & Erg Coach4 screens

Verdict

The call

The clearest difference is rating: RowIQ | Rowing & Erg Coach at 4.4 against NK Logbook's 3.8. RowIQ | Rowing & Erg Coach also leads on review sentiment (100% vs 63%) and update cadence (every 3 days vs every 4 months). NK Logbook's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, ratings volume, in-app purchases and monetization model 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 and RowIQ | Rowing & Erg Coach sells 10 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

RowIQ | Rowing & Erg Coach holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 12 and 14 respectively. Written reviews point the same way: 63% of NK Logbook's written reviews are positive against 100% of RowIQ | Rowing & Erg Coach's.

UpkeepUpdate frequency

NK Logbook ships an update every 4 months, RowIQ | Rowing & Erg Coach every 3 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
NK Logbook versus RowIQ | Rowing & Erg Coach: the parameters behind the verdict, then further details
ParameterNK LogbookRowIQ | Rowing & Erg Coach
PriceFreeFree
Rating3.8 (12 ratings)4.4 (14 ratings) — better
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings1214 — better
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size57 MB64 MB
Age rating4+12+
DeveloperNielsen-Kellerman Co.RowIQ LLC

Customer experience

NK Logbook

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

RowIQ | Rowing & Erg Coach

All ratings14 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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
10 purchases

RowIQ | Rowing & Erg Coach

Subscriptions10
  • RowIQ Premium Weekly$3.997 Days
  • RowIQ Premium Monthly7 Days trial$9.991 Month
  • Influencer Coach Access$39.991 Month
Show 7 more
  • Influencer Coach Access Premium$39.991 Month
  • RowIQ Coach — Hailey$39.991 Month
  • RowIQ Coach — Ashton Kidd$39.991 Month
  • RowIQ Coach — Will Tran$39.991 Month
  • RowIQ Coach — Dean Hargrove$39.991 Month
  • Row IQ Premium7 Days trial$89.991 Year
  • RowIQ Coach — NextStroke$349.991 Month

Questions

Is NK Logbook free?
NK Logbook is free to download, with in-app purchases available.
Is RowIQ | Rowing & Erg Coach free?
RowIQ | Rowing & Erg Coach is free to download, with in-app purchases available.
Which has better reviews, NK Logbook or RowIQ | Rowing & Erg Coach?
RowIQ | Rowing & Erg Coach is rated higher. NK Logbook averages 3.8 out of 5 from 12 ratings, while RowIQ | Rowing & Erg Coach averages 4.4 from 14 ratings.
Do NK Logbook or RowIQ | Rowing & Erg Coach have ads?
RowIQ | Rowing & Erg Coach shows ads; NK Logbook does not.
Which is updated more often, NK Logbook or RowIQ | Rowing & Erg Coach?
NK Logbook ships an update every 4 months, and RowIQ | Rowing & Erg Coach every 3 days. Most recently, NK Logbook was updated on November 2, 2026 and RowIQ | Rowing & Erg Coach on October 31, 2026.

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