Celestial Navigation
Celestial Navigation is #11 in Navigation Paid in Japan and charting in 9 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperDr. Harald Merkel
CategoryNavigation
Price1.99 USD
Released
Rating★ 4.2 (15)
Version1.4
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)1k+ worldwide
Rating
4.2 ★
15 ratings
Measured
Best rank now
#11
Navigation PaidMeasured
Celestial Navigation on the App Store
App details
App ID
1458513224
Publisher
Dr. Harald Merkel
Minimum OS
iOS 11.0+
Content rating
4+
Languages
2
EN DE
Size
54 MB
Celestial Navigation downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Celestial Navigation's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | NavigationPaid | #11 |
 United States | NavigationPaid | #47 |
 Germany | NavigationPaid | #25 |
 France | NavigationPaid | #133 |
 South Korea | NavigationPaid | #178 |
 India | NavigationPaid | #161 |
 Canada | NavigationPaid | #172 |
| Indonesia | NavigationPaid | #102 |
 Italy | NavigationPaid | #156 |
Apps near Celestial Navigation on the chart
Navigation Paid, around #11.
Ratings
App Store, worldwide.
Rating
4.2 ★
15 ratings
Measured
Ratings
15
Measured
About Celestial Navigation
This app does all the calculations to reduce a sextant reading to a line of position on the map. All intermediate numbers are shown to check your manual calculations.
• Perpetual nautical almanac
• Calculation of the line of position (azimuth and distance)
• Draws the line of position on the map.
• Star Finder: just point your device to the sky to identify the navigational stars.
• Save your readings, choose what to show on the map.
A sextant is required to make full use of this app.
• Perpetual nautical almanac
• Calculation of the line of position (azimuth and distance)
• Draws the line of position on the map.
• Star Finder: just point your device to the sky to identify the navigational stars.
• Save your readings, choose what to show on the map.
A sextant is required to make full use of this app.
Latest updates
1.4
• Supports now dark modus.
• Alphabetical star list as option.
• Bug fixes, e.g. fixed missing possibility to enter negative index error on some devices.
