# NavLink US vs SkunkTracker

The clearest difference is price: SkunkTracker at Free against NavLink US's $30.99. SkunkTracker also leads on in-app purchases (none vs 4) and ratings volume (6 vs 1). NavLink US's advantage is rating (5.0 vs 4.2) and chart position (#186 vs unranked). On update cadence, ads and device support there is nothing between them.

SkunkTracker is free to download; NavLink US costs $30.99 up front. NavLink US sells 4 in-app purchases, starting at $7.99 per year. SkunkTracker asks for nothing beyond the download.

NavLink US holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: SkunkTracker has 6 ratings behind it against 1, so its average is the more settled of the two.

NavLink US ships an update every 6 months, SkunkTracker every 3 months. The most recent releases landed on August 20, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | NavLink US | SkunkTracker |
| --- | --- | --- |
| Price | $30.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/navlink-us/id804666182/reviews)** | [4.2 (6 ratings)](https://appshunter.io/ios/app/skunktracker/id1083759544/reviews) |
| Number of ratings | 1 | **6** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#186** | — |
| Size | 28 MB | 2 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DigitalYacht Ltd.](https://appshunter.io/developer/394667310) | [Mobile Geographics](https://appshunter.io/developer/286844996) |

## What reviewers say

### NavLink US

[App page](https://appshunter.io/ios/app/navlink-us/id804666182)

**Currently charting:** #186 Top Paid · Navigation (US App Store)

This marine navigation app transforms your Apple device into a full-featured chart plotter. It displays real-time GPS positions on NOAA charts, overlays AIS data, and allows for waypoint and route planning. Features include augmented reality views and weather buoy data.

**Highlights:** Real-time GPS plotting on NOAA charts, AIS overlay with compatible systems, Waypoint and route planning, Augmented reality HorizonView, Weather buoy data, A-B chart ruler

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weather charts | $7.99 | per year |
| UK Charts | $16.99 | per year |
| US Chart Updates | $19.99 | per year |
| Canadian Charts | $29.99 | per year |


### SkunkTracker

[App page](https://appshunter.io/ios/app/skunktracker/id1083759544)

This app provides live, updating maps of ships and boats using AIS data. It connects to your AIS receivers or public network feeds to display vessel locations. Requires an AIS radio or access to an AIS data feed to function.

**Highlights:** Live AIS data display, Map visualization of vessels, Supports WiFi AIS receivers, Integrates with public AIS feeds, Real-time vessel location updates

**In-app purchases:** none


## Frequently asked questions

### Is NavLink US free?

NavLink US costs $30.99, and also offers in-app purchases.

### Is SkunkTracker free?

SkunkTracker is free to download, with no in-app purchases.

### Which has better reviews, NavLink US or SkunkTracker?

NavLink US is rated higher. NavLink US averages 5.0 out of 5 from 1 ratings, while SkunkTracker averages 4.2 from 6 ratings.

### Do NavLink US or SkunkTracker have ads?

Neither NavLink US nor SkunkTracker shows ads.

### Which is updated more often, NavLink US or SkunkTracker?

NavLink US ships an update every 6 months, and SkunkTracker every 3 months. Most recently, NavLink US was updated on August 20, 2026 and SkunkTracker on September 15, 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.*