Comparison

NK Logbook vs Row Downstream

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

Row Downstream

Features
Read full description

Downstream turns your Concept2 erg into a coached training system. Pick from a catalog of hundreds of workouts or build your own and save them to your library — filter by training zone or duration. Drop them onto your calendar and each day's session is waiting for you, ready to row. While you pull, Downstream drives the workout: live pace and stroke-rate targets, split-by-split feedback, intervals and rest, and a customizable live screen. Every workout is captured — splits, strokes, and heart rate — and lands in your log automatically. • Works with any Concept2 erg (RowErg, BikeErg, SkiErg) over Bluetooth • Verified sync to your official Concept2 Logbook • Heart rate from a chest strap or your Apple Watch — free • Import your on-water rows, bike, and run activities from Strava • Start a Spotify playlist automatically when you begin a piece • Share-ready workout summary cards No ads.

Screenshots

NK Logbook4 screens
Row Downstream4 screens

Verdict

The call

The clearest difference is in-app purchases: Row Downstream at none against NK Logbook's 4. Row Downstream also leads on update cadence (every 6 days vs every 4 months). NK Logbook's advantage is iOS requirement (13.0 vs 15.0). On price, ads 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. Row Downstream asks for nothing beyond the download.

UpkeepUpdate frequency

NK Logbook ships an update every 4 months, Row Downstream every 6 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
NK Logbook versus Row Downstream: the parameters behind the verdict, then further details
ParameterNK LogbookRow Downstream
PriceFreeFree
Rating3.8 (12 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings12 — better—
Update frequencyEvery 4 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.0 — better15.0
Further details — not scored
Size57 MB29 MB
Age rating4+4+
DeveloperNielsen-Kellerman Co.Row Downstream LLC

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
None

Row Downstream

No in-app purchases

Questions

Is NK Logbook free?
NK Logbook is free to download, with in-app purchases available.
Is Row Downstream free?
Row Downstream is free to download, with no in-app purchases.
Do NK Logbook or Row Downstream have ads?
Neither NK Logbook nor Row Downstream shows ads.
Which is updated more often, NK Logbook or Row Downstream?
NK Logbook ships an update every 4 months, and Row Downstream every 6 days. Most recently, NK Logbook was updated on October 9, 2026 and Row Downstream on October 14, 2026.

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