Best apps like Sextant — Celestial Nav

10+ similar apps compared and reviewed

4.9 avg rating
3 free apps
Updated July 2026

Whether you want more options like Sextant or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

ParcSync: Parking, EV & GPS

ParcSync: Parking, EV & GPS by parcsync

Shared Spots, Earn & Navigate
🗺️ Navigation
5.0(12 ratings)
FreeIn-App Purchases
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ParcSync: Parking, EV & GPS screenshot 3
ParcSync: Parking, EV & GPS screenshot 4
ParcSync: Parking, EV & GPS screenshot 5
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Top Alternatives to Sextant

Radar Plotting#2

Radar Plotting by Giacomo Gabriele

Strong Contender
🗺️ Navigation
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.

More apps like Sextant

4
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
5
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
6
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
7
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
8
EZ Nautical Almanac
EZ Nautical Almanac
EZ Nautical Almanac
ezNA
$9.99

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.

100 years of almanac data (1960-2059)Instant page accessData highlighting
🗺️ Navigation
(5)
paid
9
SEA.AI Oceanus
SEA.AI Oceanus
SEA.AI Oceanus
by SEA.AI SAS
Free
🗺️ Navigation
(0)
10
WilhelmSK
WilhelmSK
WilhelmSK
by Scott Bender
$19.99

This app provides a customizable dashboard for monitoring and controlling boat systems. It integrates with various marine electronics and offers features like alarm notifications, autopilot control, and chart display.

Customizable display and monitoring dashboardIntegrates with Signal K Server and various marine devicesAutopilot control and monitoring
🗺️ Navigation
(28)
paid