Best EZ Nautical Almanac alternatives: apps like EZ Nautical Almanac

9+ similar apps compared and reviewed

4.1 avg rating
5 free apps
Updated October 2026

Looking for something like EZ Nautical Almanac? We've analyzed 9+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to EZ Nautical Almanac

GPS Anti Spoof Pro#1

GPS Anti Spoof Pro by Frank Reed

sextant sight analyzer
Editor's Choice
🗺️ Navigation
5.0(7 ratings)
$19.99
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Instantly compare observed celestial navigation altitudes with calculated ones. This app helps mariners detect GPS spoofing and functions as a celestial navigation trainer. It automatically includes all necessary corrections for accurate readings.

4.9(8 ratings)
$49.99
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This app provides advanced celestial navigation computations for iPhone and iPod touch. It offers mathematical and graphic solutions for position fixes, great circle sailing, and more, including lunar distance methods and a sight planner for accurate results.

EZ Sextant#3

EZ Sextant by Third Reef Software LLC

Navigate without GPS
Worth Considering
🗺️ Navigation
5.0(4 ratings)
$24.99
#31in Navigation
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Navigate open waters using your phone's camera to sight celestial bodies. This app plots lines of position and combines them for an estimated location on a lat/lon grid. It's a powerful tool for offshore navigation without relying on GPS.

More apps like EZ Nautical Almanac

4
Celestial Nav
Celestial Nav
Celestial Nav
Modern Celestial Navigation
Free

This app provides tools for celestial navigation, offering computations for celestial bodies and sight reductions. It includes an offline perpetual almanac and allows for quick capture of observation data for accurate course adjustments.

Celestial navigational computationsOffline perpetual almanacQuick celestial observation data capture
🗺️ Navigation
(10)
free with in-app purchases
5
CamSextant
CamSextant
CamSextant
by Omar reis
Free

This app functions as a celestial navigation tool, enabling users to take altitude measurements of celestial bodies using their phone. It provides real-time star and planet identification, automatic astronomical position calculations, and a perpetual nautical almanac.

Celestial object altitude measurementReal-time star and planet identificationAutomatic astronomical position calculation
🗺️ Navigation
(6)
free
6
Nautical Calculator Preview
Nautical Calculator Preview
Nautical Calculator Preview
Nautical Calculator Preview
Free

This app provides comprehensive tools for marine navigation, including real-time ship movement, route planning, and advanced sailing calculations. It also offers features for collision avoidance, maneuvering, and learning maritime regulations and signaling.

Real-time ship movementRoute planningMercator and Great Circle sailing
🗺️ Navigation
(1)
ad-supported
7
Celestial Navigator
Celestial Navigator
Celestial Navigator
by Omar reis
Free

This app assists with celestial navigation training by providing a perpetual almanac, star finder chart with animation, and tools for calculating lines of position and meridian passages. It can utilize device sensors for real-time chart positioning, though a marine sextant is still required for actual navigation.

Perpetual almanacAnimated star finder chartLine of position calculation
🗺️ Navigation
(3)
free
8
AyeTides
AyeTides
AyeTides
by Hahn Software LLC
$7.99

Access tide and current data for over 13,400 global locations without an internet connection. Plan your coastal activities with detailed daily events, interactive graphs, and station search options.

Offline tide and current data13,400+ global locationsInteractive tide graphs
🗺️ Navigation
(4.9K)
free
9
ACR Product App
ACR Product App
ACR Product App
Configure your ACR Products
Free

Access Class B AIS and Emergency PLB/EPIRB data. View live AIS targets, check distress beacon details, and monitor battery status via NFC or WiFi. Configure your AIS with vessel information.

View live AIS targetsCheck PLB/EPIRB distress beacon detailsMonitor beacon operation time and battery condition via NFC
🗺️ Navigation
(31)
free