# iSailGPS : NOAA USA RNC Charts

> Marine Nautical Chart Plotter

Canonical page: [https://chrome-stats.com/d/id433950540](https://chrome-stats.com/d/id433950540)

## Overview

- **ID:** `id433950540`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** James Associates Inc.
- **Category:** Navigation
- **Rating:** 3.90 / 5 (72 ratings)
- **Version:** 9.6.9
- **Last updated:** 2026-04-24
- **First published:** 2011-04-29
- **Size:** 10 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/isailgps-noaa-usa-rnc-charts/id433950540)
- **Website:** [http://iSailGPS.com](http://isailgps.com/)
- **Privacy policy:** [http://isailgps.com/privacypolicy.html](http://isailgps.com/privacypolicy.html)

## Description

iSailGPS turns your iPhone or iPad into a high-performance marine chart plotter with USA NOAA Raster Nautical Charts. It operates offline, stores up to 2,200 charts, and switches automatically as you sail for uninterrupted navigation. Rated Best Choice—Excellent by Practical Sailor, it’s a trusted solution when cell service is unreliable.

Core capabilities include TRACKS, WAYPOINTS & ROUTES, MOB recovery, GPX/KML/TCX imports, and easy sharing via AirDrop or iCloud Drive. It’s ad-free, with no sign-ups or subscriptions, and respects your privacy. Recognized as a Practical Sailor Editors’ Choice Award winner.

## Rankings

- #162,917 — Overall

## Review summary

Overall, users praise iSailGPS for reliable NOAA raster charts, solid GPS tracking and waypoint/route features, and strong value. The app is battery friendly, stable, and well-supported, with reviewers noting quick responses and good updates. It’s trusted for night sailing, racing, and cross-device use between iPhone and iPad. However, chart stitching/management, inland coverage gaps, limited chart detail/zoom, and occasional chart loading issues are recurring drawbacks.

### Pros

- Accurate NOAA raster charts and reliable chart data
- Strong GPS tracking with easy waypoint/route creation and accurate speed/heading data
- Stable, battery-friendly performance
- Excellent value for money (sub-$10 price)
- Responsive support and frequent updates

### Cons

- Chart stitching/management is cumbersome; hard to stitch charts into a larger view and users rely on long lists while navigating
- Inland water coverage is missing; no inland lake charts for many regions
- Chart detail and zoom are sometimes insufficient; limited ability to zoom/read details in ports
- Occasional chart loading issues or missing charts in some areas

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Source: [Chrome-Stats](https://chrome-stats.com/d/id433950540)