# Ocean Signal vs navCenter

The clearest difference is rating: Ocean Signal at 5.0 against navCenter's 4.4. Ocean Signal also leads on in-app purchases (none vs 2). navCenter's advantage is review sentiment (78% vs 40%) and ratings volume (7 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. navCenter sells 2 in-app purchases, starting at $14.99 per year. Ocean Signal asks for nothing beyond the download.

Ocean Signal holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: navCenter has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 40% of Ocean Signal's written reviews are positive against 78% of navCenter's, so the app with the better star average is not the one people write more warmly about.

Ocean Signal ships an update every 2 months, navCenter monthly. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Ocean Signal | navCenter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ocean-signal/id1453183713/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/navcenter/id1580038607/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | 40.0% of reviews | **77.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 116 MB | 26 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ocean Signal Limited](https://appshunter.io/developer/1453183712) | [GUARDIAN DIGITAL LTD](https://appshunter.io/developer/1447117134) |

## What reviewers say

### Ocean Signal

[App page](https://appshunter.io/ios/app/ocean-signal/id1453183713)

Access critical information for emergency beacons and live data from Class B AIS devices. Utilize NFC for PLB, EPIRB, and MOB details, including battery status and test results. Configure settings and view live AIS targets via WiFi connection.

**Highlights:** Emergency beacon information access, Live Class B AIS data, NFC for PLB/EPIRB/MOB details, Battery condition and test results, Change MOB settings, WiFi connection for ATB1 AIS, Vessel detail configuration

**Features:** macOS Compatibility

**In-app purchases:** none


### navCenter

[App page](https://appshunter.io/ios/app/navcenter/id1580038607)

This app transforms your Apple devices into a multifunctional display for marine navigation data, including NMEA and AIS. It also provides autopilot remote control capabilities for compatible systems, connecting via a WiFi gateway.

**Highlights:** NMEA and AIS data display, Autopilot remote control, SeaTalk1™ and SeaTalkNG™ compatibility, WiFi gateway connection, NMEA2000 and NMEA0183 format support, Multifunctional display for iPhone, iPad, Mac, and Watch

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscribed annually | $14.99 | per year |
| Purchased | $34.99 | one-time |


## Frequently asked questions

### Is Ocean Signal free?

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

### Is navCenter free?

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

### Which has better reviews, Ocean Signal or navCenter?

Ocean Signal is rated higher. Ocean Signal averages 5.0 out of 5 from 1 ratings, while navCenter averages 4.4 from 7 ratings.

### Do Ocean Signal or navCenter have ads?

Neither Ocean Signal nor navCenter shows ads.

### Which is updated more often, Ocean Signal or navCenter?

Ocean Signal ships an update every 2 months, and navCenter monthly. Most recently, Ocean Signal was updated on September 10, 2026 and navCenter on September 9, 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.*