# Celestial Navigator

> Celestial navigation training tool with almanac, star finder, and position calculation. (iPhone/iPad app by Omar reis.)

- Source: https://appshunter.io/ios/app/celestial-navigator/id696927722 (this page in markdown: same URL + `.md`)
- Developer: [Omar reis](https://appshunter.io/developer/687921629)
- Category: Navigation, Sports
- Price: Free
- Rating: 2.00/5 from 3 App Store ratings · 7 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 32 MB
- Languages: English
- Released: 2013-09-10
- Data updated: 2026-08-12
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/celestial-navigator/id696927722/reviews.md

## What is Celestial Navigator?

Celestial Navigation Calculator with 
- perpetual Almanac
- star finder chart with animation. Use phone sensor for altitude.  
- calculation of lines of position  ( intercept/delta )
- celestial object data 
- meridian passage calculation 
- running fix support
- astronomical position calculations with two or more altitude observations
- Hipparchus 150 star catalog
- World chart with lines and position

Program can be set to use device's sensors (gyro, compass)
to position the star finder chart in  real time. 
Capture celestial object approximate altitude. 
Correct Altitude with a Marine Sextant reading (not included).

You still need a marine sextant to do celestial navigation, 
but the phone sensors may be used for training.

Software for iPhone and iPad, with the same features. 
e-book with manual and celestial navigation tutorial.

## Key features

- Perpetual almanac
- Animated star finder chart
- Line of position calculation
- Meridian passage calculation
- Real-time sensor integration
- Celestial object data

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/celestial-navigator/id696927722/reviews.md

### 4/5 — Mario

*2023-03-28, version 3.6*

I have using to practice celestial navigation problems ,its work very good Also using the artificial horizon in my  back yard I can see the LOP in seconds and  it help me to refine my skill with the sextant
I would like to use GMT hrs instead of Local Time in the calculations In the PC you have the option but not in the App
I like the Star finding

### 1/5 — Interesting but needs work.

*2019-05-28, version 2.8*

Not intuitive, star map jumps when trying to take sight, star names don’t register correctly upon taking sight.

### 5/5 — Excellent app

*2017-03-20*

I have used Omar Reis PC software for celestial navigation and I have also been tring this IOS app and I like it a lot. Thank you.

### 4/5 — Ya funciona con iPad IOS9

*2015-10-03, version 2.1.4*

Acaba de ser actualizado este programa y ahora  funciona en mi iPad-2, actualizado a iOS 9.0.1.

### 1/5 — Worked great till IOS9

*2015-09-24, version 2.0.3*

The app was great and worked beautifully till IOS9. So far it just quits right away as soon as the app is started. I hope it is fixed soon with an update.

### 1/5 — Crash, Crash, when it opens.

*2015-09-19, version 2.0.3*

The program, since the last update on Sept. 10, 2015. it doesn't work anymore on iPads.
Beware, this program doesn't work any more ! It is completely useless for an iPad.
It is a shame, because before it was a very good program.

### 2/5 — AM01

*2015-01-03*

Not worth it.

## Frequently asked questions about Celestial Navigator

### Does Celestial Navigator have ads?

No, Celestial Navigator does not contain advertisements. It is a completely ad-free application.

### What devices support Celestial Navigator?

Celestial Navigator is available for iPhone, iPad, and iPod devices. It offers the same features across all supported Apple platforms.

### How often is Celestial Navigator updated?

The latest version, 3.6, was released on November 1, 2022. Previous updates have occurred periodically since its initial release in 2013.

### What is the age rating for Celestial Navigator?

Celestial Navigator has an age rating of 4+, making it suitable for a wide range of users interested in celestial navigation.

### What is the user rating for Celestial Navigator?

Celestial Navigator currently has a rating of 2.0 stars based on 3 user reviews. This indicates a mixed reception from its user base.

### Can Celestial Navigator be used for actual navigation?

While Celestial Navigator can be used for training and calculations, a marine sextant is still required for actual celestial navigation. The app's sensors can aid in positioning the star finder chart in real-time for practice.

### What kind of tutorial does Celestial Navigator offer?

Celestial Navigator includes an e-book that serves as a manual and a tutorial for celestial navigation. This resource helps users understand and utilize the app's features.

## Version history (last 5 releases)

### 4.0 — 2026-05-11

Larger Texts.
Minor corrections
Updated Delta-T table
Corrected link to open e-book with default browser

### 3.6 — 2022-11-01

- Dark mode, better suited for dusk time use
- Moved the main menu to the top
- Fixed saving of Lines of Position to file

### 3.0 — 2020-02-18

- interface redesigned ( dark look ) 
- Help hints to guide navigation workflow
- e-Book with celnav theory and app usage. Now open with external PDF viewer

### 2.8 — 2019-03-25

- organized workflow and interface
- iphone X resolution fix
- improved stability

### 2.7 — 2017-01-09

- fixed LOP transport on iphone

## Apps similar to Celestial Navigator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [StarPilot](https://appshunter.io/ios/app/starpilot/id359071446) | 4.9 (8) | $49.99 | Navigation |
| [SEAiq Pilot](https://appshunter.io/ios/app/seaiq-pilot/id595198842) | 4.9 (445) | Free | Navigation |
| [Perpetual Nautical Almanac](https://appshunter.io/ios/app/perpetual-nautical-almanac/id1483007345) | 5.0 (1) | $6.99 | Navigation |
| [EZ Celestial Navigation](https://appshunter.io/ios/app/ez-celestial-navigation/id1547239240) | 4.9 (25) | $29.99 | Navigation |
| [Celestial Nav](https://appshunter.io/ios/app/celestial-nav/id1569880598) | 4.3 (10) | Free | Navigation |
| [Nautical Calculator Preview](https://appshunter.io/ios/app/nautical-calculator-preview/id1534074231) | 5.0 (1) | Free | Navigation |

## More apps by Omar reis

- [VRTool](https://appshunter.io/ios/app/vrtool/id687921545)
- [CamSextant](https://appshunter.io/ios/app/camsextant/id1076411081)
- [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 2026-08-12.*