# Nautical Calculator Pro vs Sextant

The clearest difference is review sentiment: Nautical Calculator Pro at 100% against Sextant's 0%. Nautical Calculator Pro also leads on iOS requirement (17.0 vs 26.0). Sextant's advantage is ads (none vs shown) and price ($9.99 vs $14.99). On update cadence, in-app purchases, monetization model and device support there is nothing between them.

Nautical Calculator Pro costs $14.99 and Sextant $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Nautical Calculator Pro ships an update fortnightly, Sextant every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Nautical Calculator Pro | Sextant |
| --- | --- | --- |
| Price | $14.99 | **$9.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nautical-calculator-pro/id1532372625/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 67 MB | 2 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [The Vu Cong](https://appshunter.io/developer/1532372627) | [Stolk.cc](https://appshunter.io/developer/313529099) |

## What reviewers say

### Nautical Calculator Pro

[App page](https://appshunter.io/ios/app/nautical-calculator-pro/id1532372625)

This app provides comprehensive tools for marine navigation, including real-time ship movement, route planning, and advanced calculations for sailing and maneuvering. It also offers learning resources on maritime regulations and signaling.

**Highlights:** Real-Time Ship Movement, Route Planning, Sailing Calculations (Mercator, Great Circle), Collision Avoidance Maneuvers, Wind and Current Calculations, Nautical Almanac, COLREG Rules and Marine Signaling

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

**In-app purchases:** none


### Sextant

[App page](https://appshunter.io/ios/app/sextant-celestial-nav/id6758679821)

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.

**Highlights:** Celestial body identification using camera and ephemeris, Sextant sight reduction with manual correction checks, Offline celestial navigation, Noon sight for latitude calculation, Line of position plotting on a real map, Polaris one-shot latitude, Solar Compass for deviation checks

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

**In-app purchases:** none


## Frequently asked questions

### Is Nautical Calculator Pro free?

Nautical Calculator Pro costs $14.99, with no in-app purchases.

### Is Sextant free?

Sextant costs $9.99, with no in-app purchases.

### Do Nautical Calculator Pro or Sextant have ads?

Nautical Calculator Pro shows ads; Sextant does not.

### Which is updated more often, Nautical Calculator Pro or Sextant?

Nautical Calculator Pro ships an update fortnightly, and Sextant every 3 weeks. Most recently, Nautical Calculator Pro was updated on September 23, 2026 and Sextant on September 24, 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.*