# iNavX vs Anchor Plus

iNavX and Anchor Plus both sit at 4.8 stars, but that hides the real split: 100% of Anchor Plus's written reviews are positive against 44% of iNavX's. Anchor Plus also leads on in-app purchases (none vs 11) and ads (none vs shown). iNavX's advantage is price (Free vs $1.99) and ratings volume (22K vs 7). On rating, update cadence, chart position and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for iNavX against 4.7 for Anchor Plus. That said, the two scores are not equally well evidenced: iNavX has 22K ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 44% of iNavX's written reviews are positive against 100% of Anchor Plus's.

iNavX ships an update every 5 weeks, Anchor Plus monthly. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | iNavX | Anchor Plus |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (22K ratings)](https://appshunter.io/ios/app/inavx-marine-navigation/id286616280/reviews)** | [4.7 (7 ratings)](https://appshunter.io/ios/app/anchor-plus/id1496727384/reviews) |
| Number of ratings | **22K** | 7 |
| Positive reviews | 43.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#103** | #179 |
| Size | 298 MB | 24 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NavX Studios LLC](https://appshunter.io/developer/286616283) | [Roy Cadman](https://appshunter.io/developer/1496724272) |

## What reviewers say

### iNavX

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

**Currently charting:** #103 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


### Anchor Plus

[App page](https://appshunter.io/ios/app/anchor-plus/id1496727384)

**Currently charting:** #179 Top Paid · Navigation (US App Store)

This app provides advanced anchor alarm functionality with features like Siri integration, Home Screen widgets, and Apple Watch control. It also includes weather forecasts, man overboard alerts, and a map view with drift history for enhanced safety and convenience while boating.

**Highlights:** Siri Shortcuts and voice commands, iOS14 Home Screen widgets, Apple Watch remote control, Email status updates and alarm alerts, Man Overboard (MOB) alerts, Map view with drift history, Current and 7-day weather forecast

**Features:** 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 Anchor Plus free?

Anchor Plus costs $1.99, with no in-app purchases.

### Which has better reviews, iNavX or Anchor Plus?

iNavX is rated higher. iNavX averages 4.8 out of 5 from 22K ratings, while Anchor Plus averages 4.7 from 7 ratings.

### Do iNavX or Anchor Plus have ads?

iNavX shows ads; Anchor Plus does not.

### Which is updated more often, iNavX or Anchor Plus?

iNavX ships an update every 5 weeks, and Anchor Plus monthly. Most recently, iNavX was updated on September 29, 2026 and Anchor Plus on September 20, 2026.

### Which is more popular, iNavX or Anchor Plus?

iNavX currently peaks at #103 in the App Store charts, and Anchor Plus at #179. 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.*