iSailGPS for Your Apple Mobile Devices*
Coordinate your sailing adventures — Always know where you've been, where you are, and where you're going.

What's new in Version 5.0.3
  • User Interface Improvements on the iPhone 6, 6 Plus, and iPad.
  • View your current location, speed & course, a track of where you've been, waypoints of important places, and routes to guide you.
  • Charts switch automatically as you sail, showing the highest resolution chart available for your location.
  • Record tracks even while your device is asleep or using another app.
  • AirDrop sharing of charts, waypoints, routes and tracks at sea, even with no Internet connection.
  • Post locations and chart images to Twitter, Facebook, Messages & email.
  • Import & export GPX waypoints, routes & tracks.
  • Set a Go To waypoint or a route and see Distance, Bearing, Course, Compass Heading, Velocity Made Good, Cross Track Error and Estimated Time of Arrival at all waypoints on the route.
  • Print charts overlaid with waypoints, routes and tracks.
  • Quickly measure distance and direction to any point on a chart.
  • View Date, Time, and Average Speed on the Speed Graph.
  • Use Degrees, Degrees/Minutes, Degrees/Minutes/Seconds, or UTM.
  • Search Place Names using the USGS Geographic Names database.
No charges for USA Marine Charts…ever
  • Download the forever-free charts directly to your mobile device when you have internet access. Use these charts on the water anytime, even with no cell signal. Store up to 500 charts.
  • Access to all available NOAA marine charts for USA waters.
  • Rely on the raster charts from our own server that are optimized for shortest download time, least memory used, superb resolution, and guaranteed accurate georeferencing.

* System Requirements:
iPhone, iPad, or iPod touch.
iOS: software version 5.1.1 or later.
WiFi-only devices require an iOS-compatible
external GPS receiver to use some functions.
See Supported Devices Chart.

 Apple, the Apple logo, iPad, iPhone & iPod touch are trademarks of Apple Inc. registered in the US & other countries. App Store is a service mark of Apple Inc.
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