# AIS Radar vs NavLink US

The clearest difference is price: AIS Radar at $6.99 against NavLink US's $30.99. AIS Radar also leads on rating (4.0 vs 3.0) and in-app purchases (none vs 4). On ratings volume, update cadence, ads and monetization model there is nothing between them.

AIS Radar costs $6.99 and NavLink US $30.99 up front. NavLink US sells 4 in-app purchases, starting at $7.99 per year. AIS Radar asks for nothing beyond the download.

AIS Radar holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

AIS Radar ships an update every 7 months, NavLink US every 6 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | AIS Radar | NavLink US |
| --- | --- | --- |
| Price | **$6.99** | $30.99 |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ais-radar/id425345530/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/navlink-us/id804666182/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Size | 3 MB | 28 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guenter Obiltschnig](https://appshunter.io/developer/425345533) | [DigitalYacht Ltd.](https://appshunter.io/developer/394667310) |

## What reviewers say

### AIS Radar

[App page](https://appshunter.io/ios/app/ais-radar/id425345530)

View Automatic Identification System (AIS) data from marine transponders or public internet feeds. Displays target information, calculates closest point of approach, and offers customizable radar views. Requires an AIS device or adapter for WiFi connectivity.

**Highlights:** Radar PPI-like display of AIS targets, Calculates CPA and TCPA, CPA/TCPA warning system, Selectable display range, Different radar display modes, List and detail views for targets, Viewer for AIS safety messages

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

**In-app purchases:** none


### NavLink US

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

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, Vision Pro support

**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 |


## Frequently asked questions

### Is AIS Radar free?

AIS Radar costs $6.99, with no in-app purchases.

### Is NavLink US free?

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

### Which has better reviews, AIS Radar or NavLink US?

AIS Radar is rated higher. AIS Radar averages 4.0 out of 5 from 1 ratings, while NavLink US averages 3.0 from 2 ratings.

### Do AIS Radar or NavLink US have ads?

Neither AIS Radar nor NavLink US shows ads.

### Which is updated more often, AIS Radar or NavLink US?

AIS Radar ships an update every 7 months, and NavLink US every 6 months. Most recently, AIS Radar was updated on October 14, 2026 and NavLink US on October 3, 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.*