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 341–360 of 1,000 ranked alternatives.

Madrid Travel Guide & AI
TicketLens GmbH
Plan trips, compare tours, build itineraries
Plan trips by asking questions and receiving step-by-step guidance. Explore attractions like royal palaces and stadiums. Compare and book tickets and tours directly. Save favorite locations and activities to create a personalized itinerary.


NAUTICAL CHART SYMBOLS & ABBREVIATIONS
The Other Hat
Symbols for nautical charts reference
The app provides reference to symbols used on nautical charts specified by the International Hydrographic Organization. It includes international abbreviations and supplementary national symbols used by the U.S.


Aero App
National Geospatial-Intelligence Agency
Navigate flights with real-time data
Access aeronautical data and flight publications for navigation. View Digital Aeronautical Flight Information File (DAFIF) and flight charts. Retrieve weather information and navigation aids. Manage flight plans and check aircraft status.





Sun Metro
City of El Paso
Plan trips with real-time bus info
Plan trips using current location, landmarks, stop numbers, or addresses. Set departure or arrival times and preferences for shortest walking distance or fewest transfers. Find nearby bus stops with GPS. View real-time bus schedules.

Sunset Rides
Magnushub Ltd
Rent electric scooters and explore
Rent electric scooters to explore Southwest Florida. Locate and unlock scooters in real-time. Pay for rentals and track usage. View maps with scooter availability. Receive notifications about scooter status and location.

GPS Field Area Measurement
Stephen Kuyper
Measure land , distance, and perimeter
Measure land , distance, and perimeter using real-time GPS. Mark points on a map to calculate fields, plots, and paths. Switch between and distance modes. Supports units like acres, hectares, and square feet. Save and export data.





Marine Navigation-USA Lake Map
Bist LLC
Navigate with voice prompts and route manager
Access vector charts, freshwater maps, and USACE river maps. Create or import routes using GPX/KML. Receive voice prompts for navigation. View tide and current predictions. Rotate charts with text remaining upright.
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