Simple accurate actual charts
I miss charts. This is by far my favorite app for sailing. No distractions, just clear accurate markings on a proper chart!
$7.99
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Unleash the navigation potential of your iPhone or iPad with SailGPS! Turn your device into a high-performance GPS receiver with USA NOAA Raster Nautical Charts, even without a cell signal!
Rated “Best Choice — Excellent” by Practical-Sailor.com
Caught in a storm on the water and your chart plotter fails? Don't worry! Download this app now and regain full navigation capabilities to safely return to port. Better yet, buy iSailGPS today ensuring you're prepared for any situation, even in areas with no cell service.
One Low Price! Everything included. No sign-ups, ads, subscriptions or in-app purchases. Completely respects your privacy.
Unrivaled Features to Enhance Your Journey:
TRACKS, WAYPOINTS & ROUTES
Record tracks as you sail, even in the background. View them on the chart and in a Speed & Course Over Ground graph.
Mark waypoints precisely using topo or satellite maps, place names or addresses, geotagged photos, or by projecting from a known point.
Set a quick GoTo waypoint or a full route and see the course (COG), heading (HDG), bearing (BRG), direction, distance, cross track error (XTE), Velocity Made Good (VMG) and Estimated Time of Arrival (ETA) at your destination and intermediate points. Perfect for racing enthusiasts.
In a Man Overboard (MOB) emergency a single button press marks your current position & starts navigating to it.
Create customized routes using waypoints, recorded tracks, or imported GPX, KML or TCX files. Advanced route editing.
Send GPX and KML waypoint, route, track and map list files via AirDrop, eMail, Messages, or iCloud Drive.
View the sun & moon position, rise times & set times for any date & place on earth.
Send data to other apps such as Google Earth.
USA NOAA RASTER NAUTICAL CHARTS
Access to all NOAA RNC Charts for USA waters with no extra charge. Download using WiFi or cell service.
Our chart files are optimized to download faster & use less storage memory. Store up to 2200 charts to use anytime at sea without cell service.
Stitches charts & automatically switches between downloaded charts as you sail. Choose detailed or overview charts.
Print & Share chart images overlaid with waypoints, routes & tracks.
Measure distance & direction between any 2 points.
NOAA charts don't include most inland rivers & small lakes. Use our iHikeGPS app for these.
HOW TOS
Tap Help in the app.
Online Manual: isailgps.com
Email developer: lwjames@isailgps.com
RASTER CHARTS VS. VECTOR CHARTS
The National Oceanic & Atmospheric Administration has provided both RNC (raster) & ENC (vector) charts.
The great advantage of the high resolution RNC charts used by iSailGPS is the high level of detail produced by professional cartographers that is unobtainable on any vector-based chart.
These RNC Charts differ from vector charts in that each chart covers a specific area, just as paper nautical charts do. Switches automatically to a new chart when your boat leaves 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 have multiple panels, each showing a different area or scale. Each digital panel is individually displayed by iSailGPS with a north-up orientation.
iSail GPS is priced to make it readily available to all boating enthusiasts.
Winner of the Practical Sailor Editors’ Choice Award.
DEVICE REQUIREMENTS
Use iSailGPS on any iOS device even if you don't have a cellular data plan for it. iPhones & WiFi+cellular iPads support full navigation. For WiFi-only iPads & iPod touch, an iOS-compatible external GPS receiver is required to show your location on the water & record tracks. However, you can view charts using the iOS device alone.
Discover a safer and more enjoyable sailing experience with iSailGPS!
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What's New in iSailGPS
9.4.14
December 18, 2024
This version is updated for iOS 18.2 and the newest iPhones and iPads. We're continually improving this app so it will be even more useful! What's new in iSailGPS when compared with other available NOAA chart apps? • You don't just see waypoints and routes displayed on the chart, you can actually do real great circle navigation to those waypoints and along those routes. You get information such as Estimated Time of Arrival, current bearing, heading and cross-track error, and remaining distances to your intermediate and final destinations. • You don't just see individual charts. Whenever the map projection is compatible (which it is most cases), you can see adjacent charts with their margins removed stitched together seamlessly, even when the chart scales are different. For example you can see the approach chart and the corresponding harbor detail chart both together on the same screen. • You can create, import, edit, export, and navigate both on routes based on a recorded or imported path, and on routes based on a series of waypoints. • Get the weather report and forecast, the sun and moon position, rise and set times, and driving directions to the dock for any point on a chart with a few taps. • iSailGPS's code size is kept very small by efficient programming so in an emergency, you can download it easily even over a weak cell connection. • The current version of iSailGPS runs on the latest devices and also on older devices with older versions of iOS , all the way back to devices such as the iPhone 6. • There is never any confusion over what charts you have available offline. They are clearly listed by NOAA chart name and number, and shown on an overview map. • Check the App Privacy section. We don't know who you are when you are using iSailGPS. We never send your current location or your recorded track to our servers. Hence we cannot and don't use your location data. We cannot and don't provide your location data to anyone else. Unlike other mapping apps that profit from using your location data in ways that do not keep it private, iSailGPS maintains the highest level of data confidentially.
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FAQ
Does iSailGPS offer an iPad version?
Yes, iSailGPS works on iPad devices.
Who made the iSailGPS app?
iSailGPS was released by James Associates Inc..
What is the minimum iOS version supported by iSailGPS?
Your iOS device must be running iOS 12.0 or above.
How do users rate the app?
The average rating for the iSailGPS app is 3.9.
What is the primary genre of the iSailGPS app?
The Primary Genre Of The Isailgps App Is Navigation.
What iSailGPS application version is the current one?
9.4.14 is the most recent version of the iSailGPS app.
When was the last iSailGPS update?
The latest iSailGPS update was rolled out on January 2, 2025.
When was iSailGPS first released?
The iSailGPS app launched on February 6, 2023.
What is the content advisory rating of the iSailGPS app?
The iSailGPS app contains no objectionable material and is suitable for children aged James Associates Inc..
What languages does iSailGPS support?
You can use the iSailGPS app in English.
Is iSailGPS available in Apple Arcade's lineup?
No, iSailGPS is not available on Apple Arcade.
Are there in-app purchases available in iSailGPS?
No, iSailGPS does not offer in-app purchases.
Does iSailGPS support Apple Vision Pro compatibility?
No, iSailGPS does not support compatibility with Apple Vision Pro.
Are ads featured prominently in iSailGPS?
No, ads are not featured prominently in iSailGPS.