# iNavX vs NAUTICAL CHART SYMBOLS GUIDE

The clearest difference is price: iNavX at Free against NAUTICAL CHART SYMBOLS GUIDE's $1.99. iNavX also leads on rating (4.8 vs 3.5) and update cadence (every 5 weeks vs every 80 months). NAUTICAL CHART SYMBOLS GUIDE's advantage is in-app purchases (none vs 11) and ads (none vs shown). On review sentiment and device support there is nothing between them.

iNavX is free to download; NAUTICAL CHART SYMBOLS GUIDE costs $1.99 up front. iNavX sells 11 in-app purchases, starting at $9.99 per month. NAUTICAL CHART SYMBOLS GUIDE asks for nothing beyond the download.

iNavX holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 44% of iNavX's written reviews are positive against 50% of NAUTICAL CHART SYMBOLS GUIDE's, so the app with the better star average is not the one people write more warmly about.

iNavX ships an update every 5 weeks, NAUTICAL CHART SYMBOLS GUIDE every 80 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iNavX | NAUTICAL CHART SYMBOLS GUIDE |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/nautical-chart-symbols-guide/id687296241/reviews) |
| Number of ratings | **22K** | 2 |
| Positive reviews | 43.8% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 80 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#135** | — |
| Size | 298 MB | 41 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NavX Studios LLC](https://appshunter.io/developer/286616283) | [The Other Hat](https://appshunter.io/developer/573973071) |

## What reviewers say

### iNavX

[App page](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280)

**Currently charting:** #135 Top Grossing · Navigation (US App Store)

This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.

**Highlights:** Worldwide marine chart access, Real-time GPS plotting, Waypoint and route management, GRIB weather forecasts, AIS integration, Nautical instrument connectivity

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theyr Premium - Mobile (Monthly) for iOS | $9.99 | per month |
| iNavX Professional+ USA | $29.99 | per year |
| Navionics+ USA/Canada (iPhone) | $29.99 | per year |
| Navionics+ Caribbean (iPhone) | $44.99 | per year |
| Theyr Premium Weather | $49.99 | per year |
| iNavX Professional+ USA Canada | $59.99 | per year |
| C-MAP World Chart | $59.99 | per year |
| Explorer Chartbooks - Bahamas | $69.99 | per year |
| Navionics+ USA/Canada (iPad) | $79.99 | per year |
| Navionics+ Caribbean (iPad) | $79.99 | per year |
| AIS Live | $99.99 | per year |

**What reviewers like**

- 🚀 Accurate and precise navigation
- 📊 Comprehensive charting and navigation features
- 🛠️ Customizable instrument settings
- 🔄 Redundancy across devices
- 💨 Reliable performance over many years

**What reviewers complain about**

- 🤔 Clunky and unintuitive user interface
- 🗺️ Cumbersome chart management and downloading
- 🔋 Battery drain issues
- 💰 Expensive subscription model for charts
- 🐛 Stability issues and crashes

**Reported bugs**

- Inability to remove waypoints
- Inconsistent behavior when transitioning International Date Line
- Disappearing or missing chart data

**Requested features**

- Seamless chart switching and panning
- Integrated tidal and current data
- Support for more chart types and providers
- Improved route planning and editing tools
- Automatic chart updates and management


### NAUTICAL CHART SYMBOLS GUIDE

[App page](https://appshunter.io/ios/app/nautical-chart-symbols-guide/id687296241)

This app provides a comprehensive reference for nautical chart symbols and abbreviations, including international standards and supplementary national symbols. It's designed for learning, revision, and quick lookups with a searchable index and offline access.

**Highlights:** International Hydrographic Organization (IHO) symbols, Supplementary US and UK national symbols, Fully searchable index, Tap & Enlarge feature, Offline access, Bonus emergency tips

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

**In-app purchases:** none


## Frequently asked questions

### Is iNavX free?

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

### Is NAUTICAL CHART SYMBOLS GUIDE free?

NAUTICAL CHART SYMBOLS GUIDE costs $1.99, with no in-app purchases.

### Which has better reviews, iNavX or NAUTICAL CHART SYMBOLS GUIDE?

iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while NAUTICAL CHART SYMBOLS GUIDE averages 3.5 from 2 ratings.

### Do iNavX or NAUTICAL CHART SYMBOLS GUIDE have ads?

iNavX shows ads; NAUTICAL CHART SYMBOLS GUIDE does not.

### Which is updated more often, iNavX or NAUTICAL CHART SYMBOLS GUIDE?

iNavX ships an update every 5 weeks, and NAUTICAL CHART SYMBOLS GUIDE every 80 months. Most recently, iNavX was updated on October 26, 2026 and NAUTICAL CHART SYMBOLS GUIDE on October 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.*