Best Nautical Calculator Pro alternatives: apps like Nautical Calculator Pro

10+ similar apps compared and reviewed

5.0 avg rating
2 free apps
Updated October 2026

Nautical Calculator Pro is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Nautical Calculator Pro

5.0(1 ratings)
$7.99
Radar Plotting screenshot 1
Radar Plotting screenshot 2
Radar Plotting screenshot 3

This app offers advanced radar plotting for maritime navigation. It allows users to calculate critical encounter data, plan maneuvers, and analyze complex scenarios with interactive visualizations. Designed for training and decision support, it aids in understanding vessel interactions.

5.0(5 ratings)
$9.99
EZ Nautical Almanac screenshot 1
EZ Nautical Almanac screenshot 2
EZ Nautical Almanac screenshot 3
EZ Nautical Almanac screenshot 4
EZ Nautical Almanac screenshot 5
EZ Nautical Almanac screenshot 6

Access 100 years of nautical almanac data digitally, from 1960 to 2059. This app offers enhanced navigation features like instant page access, highlighting, and zoom, supporting celestial navigation activities offline.

More apps like Nautical Calculator Pro

4
Sextant — Celestial Nav
Sextant — Celestial Nav
Sextant — Celestial Nav
Learn to navigate by the stars
$9.99

This app provides a comprehensive celestial navigation toolkit for sailors and enthusiasts. It allows users to navigate using celestial bodies like the sun, moon, planets, and stars, even when GPS is unavailable. The app guides users through taking sextant readings, performing calculations, and plotting positions on a map.

Celestial body identification using camera and ephemerisSextant sight reduction with manual correction checksOffline celestial navigation
🗺️ Navigation
(0)
paid
5
GPS Anti Spoof Pro
GPS Anti Spoof Pro
GPS Anti Spoof Pro
sextant sight analyzer
$19.99

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.

Celestial altitude comparisonGPS spoofing detectionCelestial navigation trainer
🗺️ Navigation
(7)
paid
6
VMGPolar
VMGPolar
VMGPolar
Sailing Calculator
Free

Calculate sailing wind and boat speed with this tool. Input three values to determine the rest and log your data for export. It helps build and validate polar graphs for sailing performance.

Sailing wind and boat speed calculationInput three values to calculate othersSave data into a log
🗺️ Navigation
(3)
free
7
EZ Sextant
EZ Sextant
EZ Sextant
Navigate without GPS
$24.99

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.

GPS-free navigationCamera-based celestial sightingsAutomatic position plotting
🗺️ Navigation
(4)
paid
8
Logarithmic Scale
Logarithmic Scale
Logarithmic Scale
by GEORGII BABUKHADIIA
Free

Calculate travel time based on distance and average speed. Ideal for calculating estimated arrival times for mechanical ships.

Passage time calculationsETA estimationSpeed and distance input
🗺️ Navigation
(4)
free
9
EZ Lunars
EZ Lunars
EZ Lunars
ezLunarsOne
$24.99

This app provides pre-computed lunar distance tables and guidance for performing celestial navigation calculations, similar to methods used over a century ago. It includes all necessary tables and functions to assist users in planning, observing, and computing Greenwich time for lunar observations, with optional output to printable forms.

Pre-computed lunar distance tablesProportional logarithm values for interpolationGuidance for planning and making observations
🗺️ Navigation
(1)
paid
10
WindRouter: Sailing Weather
WindRouter: Sailing Weather
WindRouter: Sailing Weather
Passage Routing & Boat Charts
$9.99
🗺️ Navigation
(0)