# CamSextant

> Phone-based celestial navigation tool with real-time object identification and position calculation. (iPhone/iPad app by Omar reis.)

- Source: https://appshunter.io/ios/app/camsextant/id1076411081 (this page in markdown: same URL + `.md`)
- Developer: [Omar reis](https://appshunter.io/developer/687921629)
- Category: Navigation, Sports
- Price: Free
- Rating: 4.33/5 from 6 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 26 MB
- Languages: English
- Released: 2017-01-02
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/camsextant/id1076411081/reviews.md

## What is CamSextant?

CamSextant is the easiest celestial navigation tool. It allows taking altitudes of celestial objects, using your phone as a sextant. It is a complete celestial navigation solution, with instrument, nautical almanac and celestial calculator. Point a celestial object and tap the image to capture the altitude and time.

Stars and planets shown on screen in real time.  Show constellation names and lines. Identify planets and navigation stars (from Hipparchus 150 catalog). The program can also speak the star names and altitudes (audio). 

Astronomic Position  (AP) is automatically calculated once you have two sights.  
Calculate your  astronomical position with less than 10 clicks.  
Perpetual nautical almanac using Astronomical Algorithms ( book by J. Meeus).

If you take altitude observations of the same object, the average time/altitude are shown.
 
You can calibrate the sextant horizon by reading the sea horizon altitude. 
Note that the phone is more like a bubble sextant: you don't need the sea horizon to use CamSextant. 
Anyway, click [Calibrate] button to save the correction. 
Calibration angle is subtracted from raw sensor reading. 

If you have a marine sextant at hand, you can edit the altitudes captured by the phone and get serious celestial navigation work done. 

Translations for en, es, fr, it, pt ( program texts and voice )

For more information check:

http://www.tecepe.com.br/nav/CamSextant/

## Key features

- Celestial object altitude measurement
- Real-time star and planet identification
- Automatic astronomical position calculation
- Perpetual nautical almanac
- Audio star name and altitude announcement
- Horizon calibration

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/camsextant/id1076411081/reviews.md

### 5/5 — App Store extremely buggy showing ratings…

*2024-01-21, version 2.9*

There’s something extremely buggy with the App Store. It claims there’s only four ratings on the app and version 1.0 came out over 7 years ago.

### 5/5 — Just perfect

*2022-04-23*

Great for measuring azimuths and elevation angles with the camera. 
Perfect to get data for the horizon correction of cosmogenic production rates!

### 2/5 — Interesante programa

*2020-12-08*

El programa tiene potencial aunque puede mejorar mucho. Le faltan muchas estrellas, al menos las 99 consideradas para navegación en el Almanaque Náutico del ROA.
Debería también proporcionar información de la Estrella. Como su Ángulo Sidéreo (A.S.) o en su defecto la Ascensión Recta (A.R.), declinación δ, horario del astro, etc. 
Debería también considerar la posibilidad de trabajar en tiempo UTC.
En definitiva, es prometedor

### 5/5 — Excellent app for setting up a telescope mount modeling mask

*2020-08-30, version 2.6*

The app works great for setting up a sky mask for telescope mounts that have absolute encoders when used with modeling software for multipoint mount alignment.

### 2/5 — Please update

*2019-04-07*

The app does what it says it will and pretty well too. Unfortunately the shot or the information obtained is only display for few seconds and when I bring phone down to read it it all goes away.  
We need a way to take a shot and keep the information 
Please.

### 3/5 — Inaccuracies

*2018-09-18, version 1.1*

Really cool, could be better. Tilting the phone left or right changes the angle measurement.  Could use something to make sure the phone is level or correct for this left/right angle.

## Frequently asked questions about CamSextant

### 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.

### Does CamSextant require a sea horizon?

No, CamSextant functions more like a bubble sextant and does not require a sea horizon for use. You can calibrate the sextant horizon using the sea horizon if available, but it is not mandatory.

### What celestial objects can CamSextant identify?

CamSextant can show stars and planets on screen in real time, including constellation names and lines. It can identify planets and navigation stars from the Hipparchus 150 catalog.

### Is CamSextant available in multiple languages?

Yes, CamSextant offers translations for English, Spanish, French, Italian, and Portuguese. This includes program texts and voice output.

### How often is CamSextant updated?

The latest version of CamSextant is 2.9, last updated on May 26, 2022. Information on update frequency beyond this is not specified.

### What devices support CamSextant?

CamSextant is supported on iPhone, iPad, and iPod devices. It is rated for ages 4 and up.

### Does CamSextant have ads?

No, CamSextant does not contain advertisements. It is a free application without any in-app purchases or ads.

## Version history (last 5 releases)

### 4.0 — 2026-04-23

- fixed problem in text to speech ( it was crashing on the first spoken word )
- Larger font in some labels

### 2.9 — 2022-05-26

- Constellation names and lines on screen.

### 2.8 — 2020-12-15

* Completed translations for  EN, FR, ES, IT, PT languages, including spoken names.
* Speech synthesis: Use alternating voices. For gender neutral text (2 voices) make sure there are at least 2 voices installed on your phone (per language).
* Fixed screen aspect for iphone X+

### 2.6 — 2020-05-14

- Localized app to some languages (  EN, PT, ES, FR, IT ).  
- Removed the decimal place in the main altitude label. Previous versions included the decimal to look like a marine sextant reading. But with the phone gyro sensor, it is just a distraction.
- Updated software credits
- Fixed light text over light background ( unreadable )

### 2.5 — 2020-03-17

* Speech implementation.  Program can speak name and altitude of pointed star, so you can concentrate on the sky

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## More apps by Omar reis

- [VRTool](https://appshunter.io/ios/app/vrtool/id687921545)
- [Celestial Navigator](https://appshunter.io/ios/app/celestial-navigator/id696927722)
- [Nassau St](https://appshunter.io/ios/app/nassau-st/id1093819633)
- [OPYC](https://appshunter.io/ios/app/opyc/id1217040844)
- [Planet Fun](https://appshunter.io/ios/app/planet-fun/id1525941640)

All apps by Omar reis: https://appshunter.io/developer/687921629

## Related topics

[sextant](https://appshunter.io/ios/topics/sextant) · [celestial navigation](https://appshunter.io/ios/topics/celestial-navigation)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*