Dutchman's Log Downloads & RevenueDutchman's Log · App Store
Dutchman's Log is #131 in Navigation Paid in United States and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperNavtech Software
CategoryNavigation
Price2.99 USD
Released
Rating★ 0.0 (0)
Version2.0
Age rating4+
First seen by us
6 Nov 2026
6 Nov 2026Full timeline · 3 events
- 🆕Dutchman's Log first spotted by AppInsider#84 in Top Paid · Navigation · United States
- 📦Dutchman's Log version 2.0Improved performance
Updated user interface - 🆕Dutchman's Log released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#131
Navigation PaidMeasured
Dutchman's Log on the App Store
App details
App ID
474782184
Publisher
Colin Porteous
On the store since
Nov 2011
15 years on the store
Minimum OS
iOS 18.1+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
1 MB
Also listed in
Utilities
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | NavigationPaid | #131 |
Apps near Dutchman's Log on the chart
Navigation Paid, around #131.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Dutchman's Log
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
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
Latest updates
2.0
Improved performance
Updated user interface
