Best Cam Sextant Apps

250+ iOS apps curated and reviewed

3.9 avg rating

14 free apps

Updated September 2026

Looking for free cam sextant apps? 14 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Cam Sextant Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	CamSextant	Free	4.3★ (6)	No	No	May 2026
2	Sextant — Celestial Nav	$9.99	—	No	No	Aug 2026
3	Mark Time	Free	5.0★ (3)	No	No	Aug 2026
4	Compass-GPS Cam	Free	—	No	Yes	May 2026
5	Sextant Pro	$9.99	—	No	No	Jun 2026
6	EZ Sextant	$24.99	5.0★ (4)	No	No	Aug 2026
7	Sextant Emulator	Free	—	No	No	May 2026
8	Nightsky Astrolabe	Free	—	Yes	No	May 2026

Top Picks for Cam Sextant

CamSextant by Omar reis

Editor's Choice

🗺️ Navigation

4.3(6 ratings)

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.

Sextant — Celestial Nav by Stolk.cc

Learn to navigate by the stars

Strong Contender

🗺️ Navigation

0.0(0 ratings)

$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.

Mark Time by TrozWare

Worth Considering

🗺️ Navigation

5.0(3 ratings)

Free

This app helps celestial navigators accurately record UTC time for sextant sightings. It provides tactile and auditory feedback for precise time stamping, storing readings in five registers. Users can optionally photograph their sextant for later verification.

More Cam Sextant apps to explore

Compass-GPS Cam

latitude and longitude camera

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

Simulate using a sextant to measure latitude by sighting the sun and horizon. Includes tools for calculating declination, local solar noon, and basic surveying.

Pocket sextant simulationMeasure latitudeSight sun and horizon

Learn|Try navigate with stars

Free

📚 Education

(0)

Bearing: Compass and Altimeter

GPS Altitude and Navigation

Find the planets in the sky

Free

Discover the location of planets in the night sky. This app helps you identify celestial bodies like Mars and Jupiter, indicating their position, altitude, and magnitude. It also informs you if a planet is visible without optical aid.

Indicates Azimuth, Altitude, and MagnitudeHelps locate planets by rotating phoneIndicates naked-eye visibility

This app helps you practice celestial navigation by showing every step of sight reductions and plotting lines of position. It covers calculations for the Sun, planets, and stars using standard nautical publications.

Step-by-step sight reductionsPlotting Lines of Position (LOPs)Calculations for Sun, Planets, Stars

Explore the cosmos with an interactive sky map that displays stars, planets, and celestial events. Point your device at the sky to see a real-time representation of your surroundings, with adjustable visibility settings for stars.

Interactive sky mapReal-time celestial trackingAdjustable star visibility

📚 Education

(1)

paid

iOptron iPolar Mobile

by 成城徐

$0.99

$2.99 | 67% OFF

This utility app assists users in polar aligning their telescope mounts quickly and efficiently. It connects to a specific portable computer and camera for optimal results.

Polar alignment assistanceConnects to iPolar cameraWorks with iMate portable computer

AR Compass: Earth, Moon, Sun

$2.99

Visualize celestial paths and Earth's features with an AR compass. Explore through the Earth, see global maps, and track the Sun and Moon in 3D. Offers precise GPS and barometer data for any location and time.

Immersive 3D compass with GPS dataAR view of Sun and Moon pathsSee through the Earth visualization

🗺️ Navigation

(1)

paid

Live Cam Earth Map - GPS Cam

by truong nguyen xuan

Free

Explore diverse locations worldwide with live camera feeds and GPS mapping. Discover new places and virtually travel the globe from your device.

Live camera feedsGPS mappingGlobal exploration

Celestial navigation offline

Free

This app provides a comprehensive offline celestial navigation toolkit. It calculates celestial body positions, sunrise/set times, and sky charts. It also offers tools for compass error correction and position fixing, all without requiring an internet connection.

Offline celestial almanac dataSight reduction calculationsRise, set, and twilight times

To set up your telescope.

Free

This utility app assists in telescope setup by providing essential information like GPS coordinates and universal time. It also includes a compass and calculates the local hour angle for Polaris. Designed for amateur astronomers, it simplifies the alignment process.

GPS coordinatesCompass functionalityUniversal time display

To the middle of the Milky Way

Free

This app provides a floating arrow to guide you towards the supermassive black hole at the center of the Milky Way, Sagittarius A*. It calculates the direction based on your location, time of day, and Earth's orbital position, making it easy to find your way.

Points to Sagittarius A*Dynamic direction calculationLocation-based guidance

by Dimitris Papadopoulos

Free

This app displays your current altitude, location coordinates, and compass heading. It also provides weather data like temperature and atmospheric pressure. Users can customize units, language, and access session-specific metrics.

Real-time altitude displayGPS coordinates (DMS)Live compass heading

🗺️ Navigation

(0)

free

Satellite Tracker / Radar

Track ISS, Starlink & Passes

Free

Explore the night sky with this AR-powered guide. Identify satellites like the ISS and Starlink, constellations, and stars by pointing your phone at the sky. Get real-time tracking, pass predictions, and notifications for visible celestial events.

AR Sky GuideSatellite tracking (ISS, Starlink)Constellation and star identification

📚 Education

(14)

ad-supported

FAQ about Cam Sextant

What are the best cam sextant apps for iPhone?

CamSextant tops our cam sextant apps ranking as of September 2026, with a 4.3-star average from 6 App Store ratings, and it's free to download.

Are there free cam sextant apps for iPhone?

Yes — 14 of the top cam sextant apps we rank are free to download, including CamSextant and Mark Time.

Does CamSextant have ads or in-app purchases?

CamSextant has no ads and has no in-app purchases, according to its App Store listing as of September 2026.

How many cam sextant apps are on the App Store?

We track 250+ cam sextant apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What is CamSextant?

CamSextant is a mobile application that allows you to take altitudes of celestial objects using your phone as a sextant. It acts as a complete celestial navigation solution, including an instrument, almanac, and calculator.

How does CamSextant calculate astronomical position?

After capturing altitude observations of celestial objects, CamSextant automatically calculates your Astronomical Position (AP). This process can be completed with fewer than 10 clicks.