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iSailGPS NZ : New Zealand NZMariner Marine Charts

iPhone / iPad
  • Travel
  • Navigation
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Download from AppStore

Your iPhone or WiFi+Cellular iPad can be a high-performance GPS receiver with NZ Mariner Raster Nautical Charts! On the water in a bad storm and your chart plotter just failed? Download this app now. Better yet, buy iSailGPS NZ today so you will already have it if you find yourself in this situation, even in an area with no cell service.


▶ Record a track. View it on the chart & in a speed graph. Record in the background. View date & time of track points.

▶ Mark waypoints with a convenient button on the main chart screen. Refine a waypoint position when you arrive.

▶ Set a quick "Go To" waypoint or a full route and see the course, heading, bearing, direction, distance, cross track error, Velocity Made Good & Estimated Time of Arrival at your destination and intermediate points.

▶ Routes can be built and edited starting with waypoints or a recorded track.

▶ Import and Export GPX waypoint, route & track files via eMail, Messages, Dropbox, Open In, AirDrop or iTunes.

▶ Send KML files to display immediately in GoogleEarth


▶ Forever-free access to all LINZ NZ Mariner Raster Nautical Charts, with no sign up, no subscription, no in-app purchase required. Download using WiFi or cell service. Charts from our server have a shorter download time, use less of your monthly data allotment, and take up less memory on your iOS device.

▶ Store a few charts or charts for the whole country to use anytime without cell service

▶ Switches automatically between downloaded charts as you sail. Choose detailed or overview charts.

▶ Stitches Mercator charts for seamless coverage across chart boundaries.

▶ Enjoy the high resolution and what's-all-around detail of the NZ Mariner Raster Nautical Charts (RNC). They are a welcome advantage over ENC Vector Charts, which only show a coastline, depths, navigation aids, and minimal details.

▶ Print charts overlaid with waypoints, routes & tracks. Share chart images and locations via email, Twitter, Facebook, Messages, Photos, Open In, AirDrop or the Clipboard.


▶ Tap “Help” in the App

▶ Online Manual on

▶ Email developer:


Land Information New Zealand provides both RNC (raster) and ENC (vector) charts.

The RNC Charts in iSailGPS NZ differ from computer-drawn vector charts in that each chart covers a specific area, the same way a paper nautical chart does. A new chart is switched to when traveling out of the area covered by the previous chart. For most locations, there are multiple charts at different scales with different levels of detail & areas of coverage.

Paper charts can contain multiple panels, each showing a different area or scale. Each digital panel is individually displayed by iSailGPS NZ with a north-up orientation.

iSailGPS NZ is priced to make it readily available to all sailors.


● No device requires a cellular data plan to use iSailGPS NZ.

● iPhone SE, 6S, 6S Plus, 6, 6 Plus, 5s, 5c, 5, 4S, 4 & 3GS, and all WiFi+cellular iPads support full navigation.

● iPod touch (Gen 3 or later) & WiFi-only iPads require an iOS-compatible external GPS receiver to show your location at sea & record tracks. View charts using the iOS device alone.

• File sharing via AirDrop & Messages requires iOS 7 or later.

● Continued use of GPS running in the background can dramatically decrease battery life

Sailing becomes safer and more fun with iSailGPS NZ!