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.
Perpetual Nautical Almanac screenshots
Ranked alternatives
Showing 101–120 of 1,000 ranked alternatives.
Wavve Boating: GPS, Map, Chart
Wavve Boating Inc
Find routes, track weather, and locate marinas
Access nautical charts, view tide predictions, and check weather forecasts. Locate marinas, fuel stations, and points of interest. Share real-time updates and connect with other boaters for navigation tips and safety alerts.
Savvy Navvy: Boat Navigation
SAVVY NAVVY LTD
Track routes, view charts, and monitor weather
View real-time GPS location and track movement. Access marine charts, weather forecasts, and tide information. Plan routes with smart routing features. Set and monitor alerts. Share coordinates and waypoints.
StarTracker - Mobile SkyMap
身吉 潘
See stars, constellations, and planets.
The app displays stars, constellations, and deep sky objects in real-time using the device's sensors. It includes over 8000 stars, 88 constellations, and 100+ deep sky objects with offline data and a time machine feature.
GPS Data Smart
ExaMobile S.A.
Track altitude, speed, and location
Track altitude, elevation, and GPS coordinates. Monitor speed in km/h or mph. View compass direction. Check GPS signal quality. Log location for outdoor activities like running, mountaineering, or traveling.
Pro Compass
Craig Hunter
Navigate with 3D floating
Provides a 3D floating with realistic OpenGL graphics. Users can switch between nine modes, including direct read, traditional, and rosette styles. It displays degrees, quads, or mils.
Tide Prediction
Hans-Jurgen Beckmerhagen
Upcoming high and low tides presented.
The app presents tide forecasts for numerous gauges in Germany and selected stations in other European countries. It provides high and low tide information, tide change indications, and weather details for forecast tide events.
Measure Map GPS Field
Tigran Mkhitaryan
Areas and routes on the map
Distances, areas, and routes on maps using standard, satellite, terrain, and hybrid views. Calculate total area between points or along a route. Display coordinates in UTM and MGRS formats.
Sight Calc
NUVOCOM INCORPORATED
Calculate LHA and declination for reductions
Calculate celestial navigation using the Law of Cosines method. Input Local Hour Angle, declination, and latitude to determine altitude and azimuth. Track calculations and review results for accuracy.
Globe Earth 3D - Live Map
Zipo Apps Ltd.
Explore 3D maps and weather data
Explore a 3D model of the with relief details. Navigate through a menu to access political and physical maps. View over 100 geographic features and weather data. Access factual information about global locations.
IKabe
mahmut keygubatli
Direction to Kaaba and sun compass.
The app calculates the distance and direction to the Kaaba. It also shows the sun's direction and visibility, updating the sun position every minute.
AeroPointer - Airport Data
FLEMINGER MEDIA LLC
Access aeronautical and charts offline
Access aeronautical for 41,000 airports and 10,900 radio navigation aids. View details including name, city, state, and country. Download and view weather, charts, and notams offline after initial online access.
NOAA AWC Aviation Weather
Andrea Bisegna
Get METAR, TAF, and NOTAM reports
View real-time data for airports including METAR, TAF, NOTAM, WINDS ALOFT, and forecasts. Access ICAO and IATA codes, coordinates, and sunrise/sunset times. Manage favorite airports, search by location or code, and display all airports on a map.
Lake County PASSAGE
Lake County, IL
Real-time traffic congestion information for Lake County.
The app provides motorists with real-time traffic congestion information for Lake County, IL. It includes incident and roadwork information, intersection snapshots, and the ability for users to report incidents.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.