iPhone Screenshots



Harry's Sailor is a GPS based navigation tool / sailing companion. Like all apps from Harry's GPS Suite it uses an advanced GPS Engine developed and maintained for a decade. For this Sailor app, the engine was expanded for the specific situation on a ship. One example for this expansion is treatment of speed. GPS is weak delivering exact speed informations at low vessel speeds making it necessary to utilize special algorithms.


This version brings a number of unique features to the iPhone platform. Examples are: visualization and measurement of heeling including a visual alarm when heeling in larger that 20 / 25 degree; display of racing rule #10: when boats are on opposite tacks, a port-tack boat shall keep clear of a starboard-tack boat; full navigation support, course can be defined using polar coordinates, defined waypoints, or using a course given; full integration of Google Maps; while navigation is started, deviation from course, distance to waypoint, and velocity made good (VMG) is displayed continuously; extensive reference on nautic information: signal flags, morse code, buoyages, lights and shapes, wind speed; finally, a full trip recorder including statistics, ports visited, and Google Earth export.


Sailor requires an iOS device featuring GPS. In case you want to use an iPod touch, an external GPS mouse needs to be added. Compatible devices are listed on www.gps-laptimer.de/compatibility/ios.

What’s New

Version 23.0.10

- Optimized Light / Dark skinning for web and help views
- Improved Bluetooth handling for iOS 13: LapTimer can be operated with BT disabled again
- Fixed a bug in reading NMEA from external GPS accessories
- Improved NMEA handling to handle GPS, GLONASS, Galileo, BeiDou sentences better
- Enriched NMEA sentence display in Satellites View and Sensor Information to report on GNSSes used
- Fixed problem with missed satellites in Satellites View
- Added support for sensor configuration dialogs using scripting
- Code sanitizing and modernization

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

DodgeCrate ,

Merges features of multiple higher priced apps

I have used Harry's on my sailboat for about a year now, and am very glad I purchased this app. Each of the four primary screens can be bought as stand alone sailing apps elsewhere, but I have not found one app which combines the Navigation, Boat Dynamics, GPS movement data, GPS map, waypoint management and references that this app provides.

I mount this appication on the pelorus, and turn off every other thing on the boat except for apparent wind, cuz I no loger need it - Harry's Sailor does it better than my entire $10,000 instrument suite.


SpiffingSailor ,


Still a good app, but I'd like the compass to integrate with the 3G S or iPhone 4 compass, instead of relying only on GPS for compass data for the above stated phones. Maybe a setting option on newer phones to use the built in compass.


Harald Schlangmann
47.7 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Italian, Japanese, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. Satellites Feature $0.99


  • Family Sharing

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

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