# Nautical Calculator Pro vs Navtech

The clearest difference is price: Navtech at Free against Nautical Calculator Pro's $14.99. Navtech also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). Nautical Calculator Pro's advantage is update cadence (fortnightly vs every 6 weeks). On in-app purchases and device support there is nothing between them.

Navtech is free to download; Nautical Calculator Pro costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Nautical Calculator Pro ships an update fortnightly, Navtech every 6 weeks. The most recent releases landed on October 12, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Nautical Calculator Pro | Navtech |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| 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 | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Monetization | Paid | — |
| Size | 67 MB | 247 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Vu Cong](https://appshunter.io/developer/1532372627) | [Ashish Chanana](https://appshunter.io/developer/1694191897) |

## 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


### Navtech

[App page](https://appshunter.io/ios/app/navtech-gps/id6463715599)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nautical Calculator Pro free?

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

### Is Navtech free?

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

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

Nautical Calculator Pro shows ads; Navtech does not.

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

Nautical Calculator Pro ships an update fortnightly, and Navtech every 6 weeks. Most recently, Nautical Calculator Pro was updated on October 12, 2026 and Navtech on September 22, 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.*