# EZ Sextant — Navigate without GPS

> Celestial navigation tool for offshore sailing using phone camera and almanac. (iPhone/iPad app by Third Reef Software LLC.)

- Source: https://appshunter.io/ios/app/ez-sextant/id6477748851 (this page in markdown: same URL + `.md`)
- Developer: [Third Reef Software LLC](https://appshunter.io/developer/1730250544)
- Category: Navigation
- Price: $24.99
- Rating: 5.00/5 from 4 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 3 MB
- Languages: American English
- Released: 2024-02-12
- Data updated: 2026-08-20
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ez-sextant/id6477748851/reviews.md

## What is EZ Sextant?

Navigate in open waters without a GPS. The phone's camera is used to make sightings of the sun, moon, Venus, or Mars. The sighting results are plotted as lines of position with multiple sightings combined into a running fix. Your estimated position is displayed on a lat/lon grid. You can also use your sextant and take advantage of the built-in almanac and plotting tools.

## Key features

- GPS-free navigation
- Camera-based celestial sightings
- Automatic position plotting
- Built-in almanac
- Running fix calculations
- Lat/lon grid display

## Chart rankings

- #174 in Top Paid · Navigation (US App Store)

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/ez-sextant/id6477748851/reviews.md

### 5/5 — Excellent tool

*2024-06-03*

Works great on my new iPad Pro 13inch M4.

### 5/5 — Amazing backup !!

*2024-05-03*

This celestial navigation app is by far one of the best ways I have found to learn how to use an actual sextant and is amazing how easy to use!!! Not to mention a great backup for all your navigation systems on your vessel if , in the event you lost your systems on your boat!! GREAT JOB!! It’s a true game changer in navigation!!

### 5/5 — A superb tool—thanks for the great work!

*2024-03-18*

I am a long time user of celestial navigation, a licensed master, retired US Navy Captain, and a passage maker.

In this GPS-based world of electronic navigation, I have always maintained redundant backups, including paper, charts, and celestial navigation. 

This app delivers shockingly good results with my iPhone 15.   Thanks to this great app, I predict that I will soon lose my proficiency at taking sights with my sextant and then deriving my position with the nautical almanac, and pub number 229, because the app makes quick sun lines so easy!

**Developer response:** Thanks for taking the time to review the app. Any issues or suggested improvements are greatly appreciated. Send to ezsextant@gmail.com.

## Frequently asked questions about EZ Sextant

### What is EZ Sextant?

EZ Sextant is a navigation app that allows users to navigate open waters without GPS. It utilizes the phone's camera to take sightings of celestial bodies like the sun, moon, Venus, or Mars.

### How does EZ Sextant work?

The app uses your phone's camera to make sightings of celestial bodies. These sighting results are then plotted as lines of position, which are combined to calculate your estimated position on a lat/lon grid.

### Does EZ Sextant require an internet connection?

The app is designed for navigation without GPS, implying it does not require an internet connection for its core functionality. This makes it ideal for offshore use where connectivity is limited.

### What devices is EZ Sextant available on?

EZ Sextant is available for both iPhone and iPad devices, offering a versatile option for Apple users.

### What is the price of EZ Sextant?

EZ Sextant is a paid application priced at $24.99. This one-time purchase provides access to all its navigation features.

### How often is EZ Sextant updated?

The latest version of EZ Sextant is 1.9, which was last updated on February 3, 2026. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for EZ Sextant?

EZ Sextant has an age rating of 4+, making it suitable for a wide range of users. This rating suggests no mature content is present in the application.

### Does EZ Sextant have ads?

No, EZ Sextant does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

## Version history (last 5 releases)

### 1.9 — 2026-02-03

Updated to version 26 with button fixes

### 1.8 — 2026-01-02

Increased accuracies for Venus and Mars

### 1.7 — 2025-12-03

Upgrade to iOS 18

### 1.6 — 2024-08-21

Fixed bug in image delete.

### 1.5 — 2024-08-08

Updated calibration error dialog

## Apps similar to EZ Sextant

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [EZ Nautical Almanac](https://appshunter.io/ios/app/ez-nautical-almanac/id6468887411) | 5.0 (5) | $9.99 | Navigation |
| [qtVlm](https://appshunter.io/ios/app/qtvlm/id999110023) | 3.5 (8) | Free | Navigation |
| [Boat Beacon](https://appshunter.io/ios/app/boat-beacon/id494877039) | 4.6 (854) | $14.99 | Navigation |
| [EZ Celestial Navigation](https://appshunter.io/ios/app/ez-celestial-navigation/id1547239240) | 4.9 (25) | $29.99 | Navigation |
| [Doyle Guides](https://appshunter.io/ios/app/doyle-guides/id6466621237) | 4.3 (50) | Free | Navigation |
| [Celestial Nav](https://appshunter.io/ios/app/celestial-nav/id1569880598) | 4.3 (10) | Free | Navigation |

## Related topics

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

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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 2026-08-20.*