# Waterspeed Sailing GPS Tracker vs NK Logbook

The clearest difference is rating: Waterspeed Sailing GPS Tracker at 4.6 against NK Logbook's 3.8. Waterspeed Sailing GPS Tracker also leads on update cadence (every 10 days vs every 4 months) and ratings volume (1.1K vs 12). NK Logbook's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Waterspeed Sailing GPS Tracker sells 18 in-app purchases, starting at $2.99 per month and NK Logbook sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Waterspeed Sailing GPS Tracker holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Waterspeed Sailing GPS Tracker has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 85% of Waterspeed Sailing GPS Tracker's written reviews are positive against 63% of NK Logbook's.

Waterspeed Sailing GPS Tracker ships an update every 10 days, NK Logbook every 4 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Waterspeed Sailing GPS Tracker | NK Logbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/waterspeed-sailing-gps-tracker/id1234093389/reviews)** | [3.8 (12 ratings)](https://appshunter.io/ios/app/nk-logbook/id1392561808/reviews) |
| Number of ratings | **1.1K** | 12 |
| Positive reviews | **84.7% of reviews** | 62.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 144 MB | 57 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Waterspeed Technologies Limited](https://appshunter.io/developer/1234093388) | [Nielsen-Kellerman Co.](https://appshunter.io/developer/698732840) |

## What reviewers say

### Waterspeed Sailing GPS Tracker

[App page](https://appshunter.io/ios/app/waterspeed-sailing-gps-tracker/id1234093389)

Track your performance across over 30 water sports, including sailing, wingfoiling, and kayaking. Analyze speed, distance, wind, and more to understand your progress and improve your skills. Plan your sessions with integrated forecasts and stay safe with live tracking.

**Highlights:** Track 30+ water sports sessions, Analyze speed, distance, wind, and performance metrics, Log gear and equipment usage, View progress trends over time, Live safety tracking, Integrated wind and weather forecasts, Connect with Strava and GPS-Speedsurfing.com

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WS Monthly subscription | $2.99 | per month |
| Monthly | $2.99 | per month |
| Waterspeed Pro Monthly | $3.99 | per month |
| Monthly Subscription | $3.99 | per month |
| Monthly Plan | $4.99 | per month |
| Monthly Plan | $5.99 | per month |
| WS Quarterly subscription | $7.99 | per 3 months |
| Waterspeed Ultra Monthly | $9.99 | per month |
| Waterspeed Ultra Monthly | $12.99 | per month |
| Waterspeed Ultra Monthly | $19.99 | per month |
| WS Yearly subscription | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| Waterspeed PRO Yearly | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| Yearly Plan | $59.99 | per year |
| Waterspeed Ultra Yearly | $99.00 | per year |
| Waterspeed Ultra Yearly | $149.00 | per year |
| Waterspeed Ultra Yearly | $199.00 | per year |


### NK Logbook

[App page](https://appshunter.io/ios/app/nk-logbook/id1392561808)

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:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coach Subscription | $9.99 | per month |
| Monthly Team Subscription | $74.99 | per month |
| Annual Coach Subscription | $99.99 | per year |
| Team Yearly Subscription | $749.99 | per year |


## Frequently asked questions

### Is Waterspeed Sailing GPS Tracker free?

Waterspeed Sailing GPS Tracker is free to download, with in-app purchases available.

### Is NK Logbook free?

NK Logbook is free to download, with in-app purchases available.

### Which has better reviews, Waterspeed Sailing GPS Tracker or NK Logbook?

Waterspeed Sailing GPS Tracker is rated higher. Waterspeed Sailing GPS Tracker averages 4.6 out of 5 from 1.1K ratings, while NK Logbook averages 3.8 from 12 ratings.

### Do Waterspeed Sailing GPS Tracker or NK Logbook have ads?

Neither Waterspeed Sailing GPS Tracker nor NK Logbook shows ads.

### Which is updated more often, Waterspeed Sailing GPS Tracker or NK Logbook?

Waterspeed Sailing GPS Tracker ships an update every 10 days, and NK Logbook every 4 months. Most recently, Waterspeed Sailing GPS Tracker was updated on November 1, 2026 and NK Logbook on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*