# Celestial Navigator vs Nautical Calculator

The clearest difference is price: Celestial Navigator at Free against Nautical Calculator's $8.99. Nautical Calculator's advantage is rating (5.0 vs 2.0) and iOS requirement (9.1 vs 11.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Celestial Navigator is free to download; Nautical Calculator costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Nautical Calculator holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Both ship on a similar rhythm, roughly every 9 months. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Celestial Navigator | Nautical Calculator |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/celestial-navigator/id696927722/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/nautical-calculator/id1221203637/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | Every 9 months |
| Monetization | **Free** | Paid |
| Size | 32 MB | 11 MB |
| Requires iOS | 11.0 | **9.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Omar reis](https://appshunter.io/developer/687921629) | [Aviation Mobile Apps, LLC.](https://appshunter.io/developer/286046308) |

## What reviewers say

### Celestial Navigator

[App page](https://appshunter.io/ios/app/celestial-navigator/id696927722)

This app assists with celestial navigation training by providing a perpetual almanac, star finder chart with animation, and tools for calculating lines of position and meridian passages. It can utilize device sensors for real-time chart positioning, though a marine sextant is still required for actual navigation.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Nautical Calculator

[App page](https://appshunter.io/ios/app/nautical-calculator/id1221203637)

This app provides a comprehensive suite of tools for marine navigation, including celestial, distance, and conversion calculators. It offers over 35 nautical calculations and reference materials, including "The American Practical Navigator."

**Highlights:** Celestial Navigation Calculators, Conversions Calculators, Distance Calculators, Log and Trig Calculators, Sailings Calculators, Weather Data Calculators, Reference Documents

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Celestial Navigator free?

Celestial Navigator is free to download, with no in-app purchases.

### Is Nautical Calculator free?

Nautical Calculator costs $8.99, with no in-app purchases.

### Which has better reviews, Celestial Navigator or Nautical Calculator?

Nautical Calculator is rated higher. Celestial Navigator averages 2.0 out of 5 from 3 ratings, while Nautical Calculator averages 5.0 from 4 ratings.

### Do Celestial Navigator or Nautical Calculator have ads?

Neither Celestial Navigator nor Nautical Calculator shows ads.

### Which is updated more often, Celestial Navigator or Nautical Calculator?

Celestial Navigator ships an update every 9 months, and Nautical Calculator every 9 months. Most recently, Celestial Navigator was updated on October 11, 2026 and Nautical Calculator on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*