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 201–220 of 1,000 ranked alternatives.
Paris Travel Guide & AI
TicketLens GmbH
Plan trips, compare tours, build itineraries
AI Assistant provides step-by-step guidance by answering questions. Users can explore iconic landmarks, museums, and hidden spots. Compare and book tickets, tours, and activities directly. Save favorite locations and create personalized itineraries.
Arches Canyonlands GyPSy Guide
Gypsy Guide GPS LLC
Drive and listen to guided tours
Provides narrated driving tours with automatic audio points along scenic routes. Features commentary on attractions, tips, and directions. Includes offline functionality for navigation and exploration.
NP Maps
Delcartes LLC
Download and track your route
Download for national parks and USGS topographic regions for offline use. Access 150 NPS park and 60,000+ topographic . Use GPS navigation without internet connectivity. Save for later use in areas with no data service.
E6B Aviation Calculator - FLT9
Raj Jeshang, Inc.
Calculate flight parameters and altitudes
Calculate pressure and density altitudes, true airspeed, and mach number. Determine wind correction angle and true heading. Compute crosswind, headwind, and tailwind. Find ground speed and flight time. Calculate fuel burn and cloud base.
Road to Hana: Maui Audio Tours
Hawaii Audio Tours LLC
Explore roads, discover landmarks, navigate trails
Navigate ’s with GPS-guided routes. View scenic vistas and volcanic tunnels. Learn about Hawaiian culture. Receive real-time directions and points of interest. Track progress along the highway. Save favorite spots and share trip details.
Global Position
NIK PSARAGKATHOS
Track location and navigate routes
Track precise location with Decimal Degrees, DMS, UTM, and MGRS formats. Access topographic maps and route planning. Set waypoints and measure distances. Share coordinates via email or messaging. Sync with GPS devices for real-time navigation.
Canals.UK
MARK MANSER
Navigate canals, find locks and bridges
Navigate UK canals with detailed maps showing locks, bridges, aqueducts, tunnels, and facilities. View mile markers, boatyards, CRT notices, and local amenities like pubs and convenience stores.
Sun Trolley Tracker
Buzz Group Holdings LLC
Track the trolley, find local deals.
The app shows Sun Trolley riders the current location of the trolley and its estimated arrival time. It also provides access to offers and deals from local businesses.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.