Dutchman's Log vs Knotmeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dutchman's Log
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Utility to measure your boat speed over the water. Can also be used to calibrate or to check accuracy of your speed/log device. A boat's speed may be estimated by timing how long the boat takes to pass a floating object. The boat length and desired units must be entered in 'Settings' Two persons are needed, one stands on the bow and the other aft. The person on the bow throws an object that will float (crumpled piece of paper) into the water, ahead and to one side of the bow. As it passes the bow at right angles, they shout 'Now', and the person on the stern taps the 'start timing' button. When the object passes the stern at right angles, the 'stop timing' button is tapped. The App now calculates and displays the boat speed. Units in Knots, metres/second or Kilometres/hour
Knotmeter
This application measures and displays the speed of boats and other watercraft. It shows speed in both knots and km/h, and tracks average and top speeds until reset.
- Measures boat speed
- Displays speed in knots and km/h
- Tracks average speed
- Tracks top speed
- Speed reset function
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A speedometer particular for boats and other vehicles on the water. Works great in both low and high speeds. The app shows speed in both knots and km/h. It does also keep tracks of your average speed and your top speed until you reset reset the values with the button.
Screenshots
Verdict
The clearest difference is update cadence: Knotmeter at every 5 months against Dutchman's Log's every 15 months. Knotmeter also leads on price ($1.99 vs $2.99) and iOS requirement (11.1 vs 18.1). On ads, in-app purchases 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
Dutchman's Log costs $2.99 and Knotmeter $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Dutchman's Log ships an update every 15 months, Knotmeter every 5 months. The most recent releases landed on September 21, 2026 and September 16, 2026 respectively.
| Parameter | Dutchman's Log | Knotmeter |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 15 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.1 | 11.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Navtech Software | SKALO AB |
In-app purchases
Dutchman's Log
No in-app purchases
Knotmeter
No in-app purchases
Questions
Is Dutchman's Log free?
Is Knotmeter free?
Do Dutchman's Log or Knotmeter have ads?
Which is updated more often, Dutchman's Log or Knotmeter?
Other comparisons
