iPhone Screenshots


The program "iDrifter" serves the continuous monitoring of the position (anchorfix) for anchoring yachts. The program displays graphically the current drift of the yacht relating to the anchor – selectable either as a radar graph or as a map graph in Google Maps.

For this purpose, the current position in relation to the anchor will be identified once per second and digitized as a dot on the display. As soon as a specific distance –adjustable by the skipper- to the anchor fix will be exceeded, an acoustic alarm will resound.

+ Continuous numerical displayof
+ Positioning in numerical display
+ Speed over ground
+ Course over ground
+ Display of the course over ground in compass view
+ Display of the drift in radar view
+ Display of the drift in GoogleMaps
+ Automatical restart after resetting
+ Adjustable alarm barrier for acoustic alarm
+ Adjustable GPS accuracy

Please note:
"Continued use of GPS running in the background can dramatically decrease battery life."

What’s New


+ fixed iOS 10 issues
+ added support for different distance units,
moved distance settings to separate settings section

App Privacy

The developer, Green Turtle Apps, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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