Perpetual Nautical Almanac app icon

Apps Like Perpetual Nautical Almanac for iPhone and iPad

Calculate celestial positions in real-time

Calculate precise celestial positions using real-time data from 1900 to 2050. Input date and time to instantly recalculate GHA and declination for the Sun and Aries.

by RPA TECHNOLOGIES SL★ 5.01 ratingsNavigation$6.99Data updated 2026-09-20

Perpetual Nautical Almanac screenshots

Ranked alternatives

Showing 81–100 of 1,000 ranked alternatives.

  1. PRO CHARTS - Marine Navigation app icon

    PRO CHARTS - Marine Navigation

    MiraTrex, Inc

    Navigate and track your route

    View high-resolution NOAA nautical with depth data for U.S. coasts, Great Lakes, major rivers, Brazil, and global areas. Navigate using GPS, track vessel position, and set waypoints. Access tidal information and route planning tools.

    ★ 4.58,503 ratingsNavigationFreeData updated 2026-09-08
  2. RSWRemote Park app icon

    RSWRemote Park

    FAAC SpA

    And ride with shuttle service

    Book parking at near Southwest Florida International Airport. Reserve spots and pay $40 non-refundable fee. Access via RSWRemoteParking.com or . Shuttle service available between lot and terminal.

    ★ 4.756 ratingsNavigationFreeData updated 2026-09-06
  1. Tides US app icon

    Tides US

    Loft Labs Interactive Inc

    Live tide information for planning activities.

    The app provides live tide information for planning activities. Users can view tide graphs, moon phases, and sunrise/sunset times for approximately 1870 stations across the US and Canada.

    ★ 2.820 ratingsNavigationFreeData updated 2026-10-08
  2. GoSkyWatch Planetarium app icon

    GoSkyWatch Planetarium

    GoSoftWorks Development Co.

    Point to the sky and identify celestial

    Identify and locate stars, planets, comets, constellations, and galaxies by pointing the device at the sky. View detailed information about celestial objects. Set location and time for accurate sky mapping.

    ★ 4.810,256 ratingsNavigation$3.99Data updated 2026-10-23
  3. Flat Earth Pro app icon

    Flat Earth Pro

    Othman Alzahrani

    Visualize daylight, sun, and moon positions

    View celestial positions including sun and moon overhead locations, daylight coverage, and moon phases. Track rise and set times, parallactic angle, and lunar liberations. Display day and night maps in an azimuthal projection.

    ★ 4.9116 ratingsEducation$3.99Data updated 2026-10-15
  4. Pilots Atlas app icon

    Pilots Atlas

    absolutezero multimedia GmbH

    Track flights, plan routes, and navigate safely

    Plan flights with route mapping, fuel calculations, and weather data. Track aircraft in real time. Access offline maps and charts. Set flight parameters and monitor navigation. Share flight data with other .

    ★ 4.392 ratingsTravelFreeData updated 2026-09-08
  5. CoNav app icon

    CoNav

    Vladyslav Yarmak

    ★ 4.06 ratingsNavigation$6.99Data updated 2026-10-23
  6. Kuwait Finder app icon

    Kuwait Finder

    Public Authority for Civil Information

    Find addresses and landmarks easily.

    The app provides features to search for addresses and landmarks using various criteria. Users can view live traffic, explore street views, and receive navigation guidance with voice instructions.

    ★ 4.613,112 ratingsNavigationFreeData updated 2026-10-08
  7. Altimeter GPS & Barometer app icon

    Altimeter GPS & Barometer

    Aesthetic Apps & Widgets srl

    Offline altitude and location tracking.

    The app provides altitude readings using GPS, Aster, or barometric data. It functions offline for wilderness adventures and includes features like a speedometer, step counter, and flashlight.

    ★ 4.62,137 ratingsNavigationFreeData updated 2026-10-05
  8. AllStays Camp & RV: Camping app icon

    AllStays Camp & RV: Camping

    Allstays LLC

    Find campgrounds and outdoor adventures easily.

    The app helps users find and filter places and services, with or without an internet connection. It offers extensive filters and thousands of unique points for outdoor adventures.

    ★ 4.710,623 ratingsTravelFreeData updated 2026-09-14
  9. Altimeter - Altitude & Compass app icon

    Altimeter - Altitude & Compass

    Enacti Ventures Private Limited

    Track elevation, location, and weather

    Track elevation and atmospheric pressure with and barometer. Use compass for direction based on satellite location. Access weather updates and speedometer. Log steps with pedometer. View maps and use binoculars for scouting.

    ★ 4.68,451 ratingsTravelFreeData updated 2026-09-13
  10. iSailGPS : NOAA USA RNC Charts app icon

    iSailGPS : NOAA USA RNC Charts

    James Associates Inc.

    Plot courses and track your route

    Use device as high-performance GPS receiver with USA Raster Nautical . Access without cell signal. Navigate safely in emergencies. Sync with chart plotter if available. Download for offline use. Track location and display real-time data.

    ★ 3.972 ratingsNavigation$7.99Data updated 2026-10-21
  11. Argo Navigation: Boat GPS, Map app icon

    Argo Navigation: Boat GPS, Map

    ARGO TECHNOLOGIES, LLC

    Navigate and track boat trips

    Track boat trips and navigate to destinations in North America. View real-time locations of friends. Access local knowledge from other boaters. Set and follow routes. Share trip details with others. Receive updates and alerts.

    ★ 4.96,175 ratingsNavigationFreeData updated 2026-09-11
  12. Sporty's E6B Flight Computer app icon

    Sporty's E6B Flight Computer

    Sporty's Pilot Shop

    Calculate data and track position

    Calculate -related conversions, fuel consumption, and navigation metrics. Perform arithmetic operations and unit conversions. Track time, distance, and speed. Sync with Apple Watch for real-time updates.

    ★ 4.95,374 ratingsNavigation$9.99Data updated 2026-10-23
  13. Nautical Charts & Maps app icon

    Nautical Charts & Maps

    LW Brands, LLC

    Download and view weather

    View and download NOAA electronic navigational for offline use. Access in NOAA or ECDIS formats. Overlay NOAA weather for real-time conditions. Display buoys, beacons, lights, and natural/man-made features. Track radar and fog signals.

    ★ 4.63,793 ratingsNavigation$8.99Data updated 2026-10-23

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.