# iNavX vs SeaNav

The clearest difference is ads: SeaNav at none against iNavX's shown. SeaNav also leads on review sentiment (55% vs 44%). iNavX's advantage is rating (4.8 vs 4.4) and ratings volume (22K vs 247). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. iNavX sells 11 in-app purchases, starting at $9.99 per month and SeaNav sells 18 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

iNavX holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 247, so its average is the more settled of the two. Written reviews complicate that: 44% of iNavX's written reviews are positive against 55% of SeaNav'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, SeaNav every 3 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | iNavX | SeaNav |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews)** | [4.4 (247 ratings)](https://appshunter.io/ios/app/seanav/id857841271/reviews) |
| Number of ratings | **22K** | 247 |
| Positive reviews | 43.7% of reviews | **54.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#101** | — |
| Size | 298 MB | 159 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [NavX Studios LLC](https://appshunter.io/developer/286616283) | [Pocket Mariner Ltd.](https://appshunter.io/developer/719592131) |

## What reviewers say

### iNavX

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

**Currently charting:** #101 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


### SeaNav

[App page](https://appshunter.io/ios/app/seanav/id857841271)

This app provides high-resolution marine charts, route planning, and real-time navigation for boaters. It offers features like AIS ship tracking, tide and weather information, and offline chart access. Advanced capabilities include augmented reality views and autopilot integration.

**Highlights:** High-resolution marine charts, Autoroute planning, Real-time GPS navigation, AIS ship tracking, Tides and weather, Offline chart access, Augmented Reality View

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weather charts | $4.99 | per year |
| New Zealand Charts | $5.99 | per year |
| NOAA US Raster Charts | $9.99 | per year |
| US Charts | $9.99 | per month |
| Pro Features | $10.49 | per year |
| Bermuda and BVI Charts | $12.99 | per year |
| Italy, Sardinia and Sicily | $17.99 | per year |
| Norwegian Charts | $18.49 | per year |
| US Charts | $19.99 | per year |
| Portuguese Charts | $19.99 | per year |
| BE & NL Charts | $20.99 | per year |
| Spanish Charts | $24.99 | per year |
| UK & IE Charts | $24.99 | per year |
| French Charts | $24.99 | per year |
| Canadian Charts | $26.99 | per year |
| Croatian Charts | $28.49 | per year |
| Man Overboard & Anchor Watch | $4.99 | one-time |
| Pro Features | $14.99 | one-time |

**What reviewers like**

- 👍 Easy to use and great price
- 👍 Much easier to use than competitors
- 👍 UKHO Charts at a reasonable price
- 👍 Intuitive interface, clear and uncluttered
- 👍 Supports NMEA data integration

**What reviewers complain about**

- 🐛 Frozen/locked app
- 💰 Neil and dime for everything
- ❌ Not picking up vessels or ship traffic
- ❌ Charts not good, weather not working
- ❌ Difficult to download and update charts

**Reported bugs**

- Frozen/locked app
- Not picking up vessels or ship traffic
- App does not open
- Crashes after crashes
- Sailing mode crash

**Requested features**

- Can you see water depth on Apple Watch?
- Download all purchased charts button
- Update all purchased charts button
- Legend for symbols and colors
- Brief chart reading explainer


## Frequently asked questions

### Is iNavX free?

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

### Is SeaNav free?

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

### Which has better reviews, iNavX or SeaNav?

iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while SeaNav averages 4.4 from 247 ratings.

### Do iNavX or SeaNav have ads?

iNavX shows ads; SeaNav does not.

### Which is updated more often, iNavX or SeaNav?

iNavX ships an update every 5 weeks, and SeaNav every 3 weeks. Most recently, iNavX was updated on September 25, 2026 and SeaNav 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.*