i Sail GPS : NOAA Charts

i Sail GPS : NOAA Charts

By James Associates Inc.

  • Category: Navigation
  • Release Date: 2011-04-29
  • Current Version: 8.0.3
  • Adult Rating: 4+
  • File Size: 11.03 MB
  • Developer: James Associates Inc.
  • Compatibility: Requires iOS 7.1 or later.
Score: 3.5
From 72 Ratings


Your iPhone or WiFi+Cellular iPad becomes a high-performance GPS receiver with offline USA NOAA Raster Nautical Charts! Rated “Best Choice — Excellent” by Practical-Sailor.com On the water in a bad storm and your chart plotter just failed? Download this app now. You will have full navigation capabilities to get safely back to port. Better yet, buy iSailGPS today so you will already have it if you find yourself in this situation, even in an area with no cell service. No sign up, ads, subscription, or in-app purchase required, making this less expensive & less hassle than the “free” apps. TRACKS, WAYPOINTS, ROUTES ▶ Record a track. View it on the chart and in a speed graph. Record in the background. View time of track points. ▶ Mark waypoints by their position on a chart, by tapping a geotagged photo, by projecting from a known point, or by searching place names. Refine a waypoint position when you arrive. ▶ 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. ▶ Man Overboard. With one button push, mark your current position & start navigating to it. ▶ Create routes using waypoints, recorded tracks, or imported GPX files. Advanced route editing. ▶ Import & Export GPX waypoint, route & track files via eMail, Messages, Import With, AirDrop, iCloud Drive, Dropbox or iTunes. ▶ Send KML files to display immediately in Google Earth. USA NOAA RASTER NAUTICAL CHARTS ▶ Forever-free access to all NOAA RNC Charts for USA waters. Download using WiFi or cell service. ▶ Store up to 750 charts to use anytime at sea without cell service. Charts from our server have a shorter download time, use less of your monthly data allotment & use less storage. ▶ Stitches charts and automatically switches between downloaded charts as you sail. Choose detailed or overview charts. ▶ Print and Share map images overlaid with waypoints, routes & tracks. ▶ 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 provides both RNC (raster) and 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. ENC Vector Charts only show a coastline, water depth, navigation aids & minimal details. 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. Other, more expensive marine software uses these same RNC charts. iSail GPS is priced to make it readily available to all boating enthusiasts. DEVICE REQUIREMENTS ● No device requires a cellular data plan to use iSailGPS. ● iPad 2 or later with WiFi+cellular, & iPhone 4 or later support full navigation. ● iPad 2 or later with WiFi-only, & iPod touch (5th gen or later) require an iOS-compatible external GPS receiver to show your location on the water & record tracks. View charts using the iOS device alone. ● Continued use of GPS running in the background can dramatically decrease battery life. Winner of the Practical Sailor Editors’ Choice Award Sailing becomes safer and more fun with iSailGPS!



  • My favorite app

    By DarlingtonJohn
    I have used many apps for marine navigation. I have settled on this beautiful app as my favorite. Did you know that it is one of the only apps in this genre that will work on the iPad1? Not only does it use NOAA charts by our gov't but it can also stitch them together. The documentation is just excellent. I feel that you can become a fan of this application.
  • ISailGPS is GREAT

    By Baflo1251
    Really a very useful app with lots of functionality though not totally intuitive - need to review the instructions. The charts alone make the app worth having. Use extensively while sea kayaking. Strongly recommended
  • Really great

    By JHM44
    I have never written an app review before but now I feel compelled to do so! This app allows free downloading of official nautical charts rom the actual NOAA server so there are no issues with being up to date or inaccurate. It's a great balance between simplicity and functionality - the charts themselves, making waypoints and routes, tracking. That's about it. But when you are cruising that's really all you need. I have a vector-based competitor (iSailor) which is also very high tech and very cool and has more functions by far. I thought I would like it better. But in fact the vector information can be ever so slightly off so I never use it in tight quarters. In fact I've started to use this exclusively instead.
  • Excellent! Add Instrument Panel?

    By careful listener today
    I love iSailGPS! Simple, stable, clear. Upgrade wish: Add an "instrument panel" page, showing just instrument numbers, for use when racing and/or in open ocean: - show: HDG, COG, SOG, DTW, BRG, VMG; use big numerals in vertical list; allow night-mode red numerals - to display: swipe left on instruments at top of My Location display (to return to chart, swipe left on instrument panel).
  • Great app

    By Rafcaste83
    I bought this to rent powerboats in the keys and it has been very reliable. I love the the maps are not an additional cost. Great value for the price
  • Great backup

    By Matt9284
    Great program for the money. Simple to use after you know how. Charts are great. Not as nice as my BnG chart plotter on my boat. But as a captain doing boat transport I will defiantly be carrying this as a back up. Also very useful for rout planing when not on the boat.
  • Not recommended

    By SimBob56
    This app seems to consume the processor, as zooming in / out and moving the map around takes several seconds to respond, and battery life is short when its running. It was the only app I could find to show GPS position on a NOAA chart, but it really needs work to make it more responsive.
  • Excellent navigation app!

    By Bludog76
    I use this app every time I sail. It is accurate, has many great options and has a very detailed help section. I reported a minor issue and a new version with the fix was released within a few days.
  • Great apps!

    By OutdoorsTim
    I purchased both iSail and iHike apps this year and they are both TERRIFIC! They were easy to download and easy to used. I sailed both offshore and inside small harbors in New England and found the iSail app to be incredibly useful. I chartered a sailboat this year and the chartplotter mounted on the boat was old and lacked detail. I found the iSail app especially useful when going in and out of small harbors, which required knowing precisely where I was relative to the shallow areas, which I needed to stay away from. It was no problem holding my iphone while steering the boat. I still brought hard copy maps and used the boat's compass, but this app greatly enhanced my ability to safely navigate, especially in tight places. iHike performed just as well when I went horseback riding on 80 miles of unmarked trails in Colorado in a area that was "off the grid" (I gave a separate review on the iHike site). Thanks for making such great apps!
  • Server problems

    By SolomonWalker
    Constantly fails when downloading charts. Do not buy!