Perpetual Nautical Almanac Downloads & RevenuePerpetual Nautical Almanac · App Store
Perpetual Nautical Almanac is #168 in Navigation Paid in China and charting in 6 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperRPA Technologies
CategoryNavigation
Price6.99 GBP
Released
Rating★ 5.0 (1)
Version2.5
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Perpetual Nautical Almanac update history & changes
Last change · 13 events since 10 Oct 2019Full timeline ↓📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider📦Version 2.5🆕Released on the App Store
Full timeline · 13 events
- 📈Perpetual Nautical Almanac entered the top 100Top Paid · Navigation · GB
- 📈Perpetual Nautical Almanac charting in a new countryUnited Kingdom
- 📈Perpetual Nautical Almanac entered the top 10Top Paid · Navigation · KR
- 📈Perpetual Nautical Almanac entered the top 100Top Grossing · Navigation · KR
- 📈Perpetual Nautical Almanac entered the top 100Top Paid · Navigation · AU
- 📈Perpetual Nautical Almanac charting in a new countryAustralia
- 📈Perpetual Nautical Almanac entered the top 100Top Paid · Navigation · DE
- 📈Perpetual Nautical Almanac charting in a new countryGermany
- 📈Perpetual Nautical Almanac entered the top 100Top Paid · Navigation · CA
- 📈Perpetual Nautical Almanac charting in a new country in 4 chartsCanada · China · India · Russia
- 🆕Perpetual Nautical Almanac first spotted by AppInsider#89 in Top Paid · Navigation · South Korea
- 📦Perpetual Nautical Almanac version 2.5Tested with iOS 27.1, now compatible with iPad and Mac Catalyst
- 🆕Perpetual Nautical Almanac released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
1 ratings
Measured
Best rank now
#168
Navigation PaidMeasured
Perpetual Nautical Almanac on the App Store
App details
App ID
1483007345
Publisher
RPA TECHNOLOGIES SL
On the store since
Oct 2019
7 years on the store
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
27 MB
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | NavigationPaid | #168 |
| South Korea | NavigationPaid | #87 |
 India | NavigationPaid | #122 |
 Russia | NavigationPaid | #111 |
 Indonesia | NavigationPaid | #103 |
 United Arab Emirates | NavigationPaid | #190 |
Apps near Perpetual Nautical Almanac on the chart
Navigation Paid, around #168.
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
What users say about Perpetual Nautical Almanac
From recent reviews.
About Perpetual Nautical Almanac
Using the U.S. Naval Observatory NOVAS library and solar system ephemerides from JPL, high precision positions can be calculated in real-time from 1900 to 2050.
Simply select date and time and all values are recalculated instantly. The estimated elevation value is only needed for calculating sunrise/sunset, twilight, and moonrise/moonset.
The app provides the following functionalities:
*Aries: GHA position
*Sun:
-GHA/dec
- Astronomical dawn, nautical dawn, civil dawn, sunrise, sunset, civil dusk, nautical dusk, astronomical dusk, and meridian passage at Greenwich.
- Semidiameter
- Sunlight world map with the Sun and the Moon position.
*Moon:
- GHA/dec
- Moonrise/moonset and meridian passage at Greenwich.
- Semidiameter
- Moon phase and age of the Moon.
*Planets:
- GHA/dec for Venus, Mars, Jupiter, and Saturn.
*Stars:
- Magnitude, SHA/dec of 99 stars ordered by SHA.
*Corrections:
- Correction for the atmospheric refraction.
- Correction for the dip of the horizon.
- Parallax correction for the Moon, the Sun, Venus, and Mars.
Simply select date and time and all values are recalculated instantly. The estimated elevation value is only needed for calculating sunrise/sunset, twilight, and moonrise/moonset.
The app provides the following functionalities:
*Aries: GHA position
*Sun:
-GHA/dec
- Astronomical dawn, nautical dawn, civil dawn, sunrise, sunset, civil dusk, nautical dusk, astronomical dusk, and meridian passage at Greenwich.
- Semidiameter
- Sunlight world map with the Sun and the Moon position.
*Moon:
- GHA/dec
- Moonrise/moonset and meridian passage at Greenwich.
- Semidiameter
- Moon phase and age of the Moon.
*Planets:
- GHA/dec for Venus, Mars, Jupiter, and Saturn.
*Stars:
- Magnitude, SHA/dec of 99 stars ordered by SHA.
*Corrections:
- Correction for the atmospheric refraction.
- Correction for the dip of the horizon.
- Parallax correction for the Moon, the Sun, Venus, and Mars.
Latest updates
2.5
Tested with iOS 27.1, now compatible with iPad and Mac Catalyst