# iNavX vs Map Chart Mosaic

The clearest difference is price: iNavX at Free against Map Chart Mosaic's $3.99. iNavX also leads on review sentiment (44% vs 0%) and rating (4.8 vs 2.6). Map Chart Mosaic's advantage is in-app purchases (none vs 11) and ads (none vs shown). On update cadence, chart position and device support there is nothing between them.

iNavX is free to download; Map Chart Mosaic costs $3.99 up front. iNavX sells 11 in-app purchases, starting at $9.99 per month. Map Chart Mosaic asks for nothing beyond the download.

iNavX holds the better App Store score, 4.8 against 2.6. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 44% of iNavX's written reviews are positive against 0% of Map Chart Mosaic's.

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on September 26, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | iNavX | Map Chart Mosaic |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews)** | [2.6 (5 ratings)](https://appshunter.io/ios/app/map-chart-mosaic/id1444818142/reviews) |
| Number of ratings | **22K** | 5 |
| Positive reviews | **43.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#128** | #130 |
| Size | 298 MB | 39 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) | [AppMosaic.com](https://appshunter.io/developer/301672819) |

## What reviewers say

### iNavX

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

**Currently charting:** #128 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


### Map Chart Mosaic

[App page](https://appshunter.io/ios/app/map-chart-mosaic/id1444818142)

**Currently charting:** #130 Top Paid · Navigation (US App Store)

Access detailed topographic, satellite, and weather forecast maps offline on your iPhone and smartwatch. Plan routes, record GPS tracks, and share your journey data. View maps without an internet connection.

**Highlights:** Offline topographic and satellite maps, GRIB weather forecast maps, Cycle and hiking trail maps, Smartwatch map support (Apple Watch, Fitbit, Garmin, Amazfit), Add map markers and travel routes, Record GPS tracks and share as GPX, GPS travel information (speed, ETA)

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

**In-app purchases:** none


## Frequently asked questions

### Is iNavX free?

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

### Is Map Chart Mosaic free?

Map Chart Mosaic costs $3.99, with no in-app purchases.

### Which has better reviews, iNavX or Map Chart Mosaic?

iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while Map Chart Mosaic averages 2.6 from 5 ratings.

### Do iNavX or Map Chart Mosaic have ads?

iNavX shows ads; Map Chart Mosaic does not.

### Which is updated more often, iNavX or Map Chart Mosaic?

iNavX ships an update every 5 weeks, and Map Chart Mosaic every 5 weeks. Most recently, iNavX was updated on September 26, 2026 and Map Chart Mosaic on September 12, 2026.

### Which is more popular, iNavX or Map Chart Mosaic?

iNavX currently peaks at #128 in the App Store charts, and Map Chart Mosaic at #130. 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.*