# Nautical Calculator Pro vs CoNav

The clearest difference is rating: Nautical Calculator Pro at 5.0 against CoNav's 4.0. Nautical Calculator Pro also leads on device support (3 vs 1). CoNav's advantage is review sentiment (83% vs 60%) and update cadence (every 3 weeks vs every 2 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Nautical Calculator Pro costs $8.99 and CoNav $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Nautical Calculator Pro holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews complicate that: 60% of Nautical Calculator Pro's written reviews are positive against 83% of CoNav's, so the app with the better star average is not the one people write more warmly about.

Nautical Calculator Pro ships an update every 2 months, CoNav every 3 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Nautical Calculator Pro | CoNav |
| --- | --- | --- |
| Price | $8.99 | **$6.99** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nautical-calculator-pro/id1455851003/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/conav/id1456729642/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | 60.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 27 MB | 17 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Giacomo Gabriele](https://appshunter.io/developer/1455745031) | [Vladyslav Yarmak](https://appshunter.io/developer/1456545549) |

## What reviewers say

### Nautical Calculator Pro

[App page](https://appshunter.io/ios/app/nautical-calculator-pro/id1455851003)

This app provides comprehensive tools for solving complex nautical navigation calculations, including route planning, celestial navigation, and tidal predictions. It features a world map for route visualization and offline functionality for map display.

**Highlights:** Route calculation, Point on Rhumb Line/Great Circle, Celestial navigation, Tidal calculations, Wind calculation, Nautical almanac, World map visualization

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

**In-app purchases:** none


### CoNav

[App page](https://appshunter.io/ios/app/conav/id1456729642)

This app provides essential tools for deck officers, including compass error calculation, celestial navigation, and ETA calculations. It offers offline functionality with precise algorithms for various maritime tasks, such as unit conversion and port information.

**Highlights:** Compass Error Calculation, Celestial Navigation, ETA Calculation, Port UN LOCODE Database, Units Converter, True Wind Calculation, Offline Functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Nautical Calculator Pro free?

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

### Is CoNav free?

CoNav costs $6.99, with no in-app purchases.

### Which has better reviews, Nautical Calculator Pro or CoNav?

Nautical Calculator Pro is rated higher. Nautical Calculator Pro averages 5.0 out of 5 from 3 ratings, while CoNav averages 4.0 from 6 ratings.

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

Neither Nautical Calculator Pro nor CoNav shows ads.

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

Nautical Calculator Pro ships an update every 2 months, and CoNav every 3 weeks. Most recently, Nautical Calculator Pro was updated on September 17, 2026 and CoNav on September 23, 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.*