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iSailGPS : NOAA USA RNC Charts

App Store·NavigationPaid $7.993.93 (71)launched 15.1y agoapp updated 1mo agocharts in 1 country
Scout Score
14

iSailGPS : NOAA USA RNC Charts generates an estimated $200–$900/month in revenue from 30–200 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-06-17).

Estimates updated 17.06.2026 · How we estimate · Ranges reflect model confidence, not exact figures.
Est. revenue / month$200–$900
Est. downloads / month30–200
Estimate confidencemedium
PricingPaid $7.99
Rating3.93 ★ (71 ratings)
CategoryNavigation
Best chart rank#42 Navigation Paid
Released29.04.2011
App last updated24.04.2026
PlatformiOS
Est. downloads / mo
30–200
Est. revenue / mo
$200–$900
Rating velocity / day
0
Chart velocity
▲ 1/day
Peak rank
#20
Days tracked
12
Chart ranks
#42 Navigation Paid

Modeled monthly estimate · rating velocity · medium confidence

About

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…

Trends & analysis

Chart rank trend

US · category
#20#88
Jun 4Jun 18
Paid #42

Why it's surfacing

Scout 14
Newness
3
Breakout
1

Ratings & velocity

★ 0 in window
Total ratings
71
Jun 4Jun 18
New ratings / day
10
Jun 5Jun 18

Rating distribution

72% positive · 71 ratings
5
65%
4
7%
3
3%
2
7%
1
18%

Geographic reach

best rank · 1 storefront
us
#42 category

Revenue & downloads trend

ARPU $6
Est. revenue / mo · $426
$4k$0
Jun 4Jun 17
Est. downloads / mo · 76
7720
Jun 4Jun 17

Update history

1 update tracked
  • v9.6.91mo ago

    Improved wording on some Alerts and Notifications. 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.

iSailGPS : NOAA USA RNC Charts — FAQ

How much money does iSailGPS : NOAA USA RNC Charts make?

According to AppCurrents estimates, iSailGPS : NOAA USA RNC Charts generates approximately $200–$900 per month (medium confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.

How many downloads does iSailGPS : NOAA USA RNC Charts get?

iSailGPS : NOAA USA RNC Charts sees an estimated 30–200 downloads per month on the App Store, per AppCurrents modeling.

Is iSailGPS : NOAA USA RNC Charts free?

iSailGPS : NOAA USA RNC Charts is a paid app priced at $7.99 on the App Store.

What is iSailGPS : NOAA USA RNC Charts's rating?

iSailGPS : NOAA USA RNC Charts holds a 3.93-star average from 71 ratings on the App Store. It currently ranks #42 on the Navigation paid chart.

When was iSailGPS : NOAA USA RNC Charts released?

iSailGPS : NOAA USA RNC Charts launched on the App Store on 29.04.2011. Its latest version shipped 24.04.2026.

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