# iNavX vs Ditch

The clearest difference is rating: iNavX at 4.8 against Ditch's 3.9. iNavX also leads on ratings volume (22K vs 22) and iOS requirement (13.0 vs 15.1). Ditch's advantage is ads (none vs shown) and review sentiment (64% vs 44%). 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 Ditch sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

iNavX holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 22, so its average is the more settled of the two. Written reviews complicate that: 44% of iNavX's written reviews are positive against 64% of Ditch'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, Ditch monthly. The most recent releases landed on September 24, 2026 and August 4, 2026 respectively.

## The numbers

| Metric | iNavX | Ditch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews)** | [3.9 (22 ratings)](https://appshunter.io/ios/app/ditch-boat-navigation/id1667064532/reviews) |
| Number of ratings | **22K** | 22 |
| Positive reviews | 43.7% of reviews | **64.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#113** | #189 |
| Size | 298 MB | 72 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NavX Studios LLC](https://appshunter.io/developer/286616283) | [Extent Devices LLC](https://appshunter.io/developer/1665685027) |

## What reviewers say

### iNavX

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

**Currently charting:** #113 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


### Ditch

[App page](https://appshunter.io/ios/app/ditch-boat-navigation/id1667064532)

**Currently charting:** #189 Top Grossing · Navigation (US App Store)

Enhance your boating experience with intelligent routing and accurate arrival time predictions. Visualize historical vessel traffic and customize charts for a personalized view of waterways, ensuring safer and more confident journeys on the water.

**Highlights:** AI-powered smart routing, Accurate ETA predictions, Historical AIS data visualization, Customizable marine charts, Live navigation view, Up-to-date waterway information

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ditch Student Subscription | $24.99 | per year |
| Ditch Annual iOS Subscription | $29.99 | per year |


## Frequently asked questions

### Is iNavX free?

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

### Is Ditch free?

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

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

iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while Ditch averages 3.9 from 22 ratings.

### Do iNavX or Ditch have ads?

iNavX shows ads; Ditch does not.

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

iNavX ships an update every 5 weeks, and Ditch monthly. Most recently, iNavX was updated on September 24, 2026 and Ditch on August 4, 2026.

### Which is more popular, iNavX or Ditch?

iNavX currently peaks at #113 in the App Store charts, and Ditch at #189. Chart position reflects recent download velocity rather than total install base.

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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.*