# Nautical Calculator Pro vs CVoyager

The clearest difference is price: CVoyager at Free against Nautical Calculator Pro's $8.99. CVoyager also leads on review sentiment (88% vs 60%) and update cadence (every 8 days vs every 2 months). Nautical Calculator Pro's advantage is rating (5.0 vs 3.5) and in-app purchases (none vs 3). On ratings volume, ads and device support there is nothing between them.

CVoyager is free to download; Nautical Calculator Pro costs $8.99 up front. CVoyager sells 3 in-app purchases, starting at $0.99 per month. Nautical Calculator Pro asks for nothing beyond the download.

Nautical Calculator Pro holds the better App Store score, 5.0 against 3.5. 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 88% of CVoyager'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, CVoyager every 8 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Nautical Calculator Pro | CVoyager |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nautical-calculator-pro/id1455851003/reviews)** | [3.5 (6 ratings)](https://appshunter.io/ios/app/cvoyager/id6502268141/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | 60.0% of reviews | **87.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 27 MB | 100 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| 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


### CVoyager

[App page](https://appshunter.io/ios/app/cvoyager/id6502268141)

This app simplifies maritime navigation for professionals by plotting efficient and safe sea routes. It calculates precise ETAs and offers customizable routing based on vessel specifics, utilizing advanced pathfinding algorithms and a global port database.

**Highlights:** Optimized route planning, Customizable routes, Precise ETA calculation, A* pathfinding algorithm, Global port database, User-friendly interface, Customizable preferences

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Navigational Warnings Monthly | $0.99 | per month |
| NAVAREA Warnings 6-Month | $3.99 | per 6 months |
| All Ports | $9.99 | one-time |


## Frequently asked questions

### Is Nautical Calculator Pro free?

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

### Is CVoyager free?

CVoyager is free to download, with in-app purchases available.

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

Nautical Calculator Pro is rated higher. Nautical Calculator Pro averages 5.0 out of 5 from 3 ratings, while CVoyager averages 3.5 from 6 ratings.

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

Neither Nautical Calculator Pro nor CVoyager shows ads.

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

Nautical Calculator Pro ships an update every 2 months, and CVoyager every 8 days. Most recently, Nautical Calculator Pro was updated on November 2, 2026 and CVoyager on November 5, 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.*