Best apps like Sextant — Celestial Nav

9+ similar apps compared and reviewed

4.9 avg rating
3 free apps
Updated October 2026

Whether you want more options like Sextant or a completely different take on the same concept, our curated list of 9+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Sextant

5.0(1 ratings)
$7.99
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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.

Almicantarat#3

Almicantarat by Pierre-Louis Deschamps

Celestial Navigation
Worth Considering
🗺️ Navigation
0.0(0 ratings)
$9.99
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This professional celestial navigation app allows users to accurately determine their position using a sextant to observe stars, planets, and the Sun. It features a 3D sky map and integrates with the device's native map for celestial fixes. Users can utilize either their current device location or dead reckoning for navigation.

More apps like Sextant

4
Perpetual Nautical Almanac
Perpetual Nautical Almanac
Perpetual Nautical Almanac
by RPA TECHNOLOGIES SL
$6.99

Calculate precise celestial positions for navigation from 1900 to 2050. Get real-time data on the Sun, Moon, planets, and stars, including rise/set times and atmospheric corrections.

Real-time celestial body positionsSunrise/sunset and moonrise/moonset calculationsSunlight world map with celestial positions
🗺️ Navigation
(1)
paid
5
Helmsman's Kit
Helmsman's Kit
Helmsman's Kit
by Dr. Harald Merkel
$1.99

This navigation app provides essential yacht cockpit features, including a spherical compass, man-over-board alerts, and anchor watch. It offers offline charts, weather overlays, and marine instrument displays for a comprehensive sailing experience.

Spherical compass displayMan-over-board button with direction/distanceAnchor watch with forwarding
🗺️ Navigation
(0)
paid
6
nautiMessage
nautiMessage
nautiMessage
Send Signal Flag messages
Free
🗺️ Navigation
(0)
7
Nautical Calculator Pro
Nautical Calculator Pro
Nautical Calculator Pro
Nautical Calculator Pro
$14.99

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

Real-Time Ship MovementRoute PlanningSailing Calculations (Mercator, Great Circle)
🗺️ Navigation
(1)
paid
8
Messina Strait Currents
Messina Strait Currents
Messina Strait Currents
Predictions, values and graphs
Free
🗺️ Navigation
(0)
9
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