# Anchor Alarm / Watch vs navCenter

The clearest difference is ratings volume: Anchor Alarm / Watch at 812 against navCenter's 7. Anchor Alarm / Watch also leads on rating (4.7 vs 4.4). navCenter's advantage is review sentiment (78% vs 55%) and device support (4 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Anchor Alarm / Watch sells 5 in-app purchases, starting at $3.99 per year and navCenter sells 2 in-app purchases, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

Anchor Alarm / Watch holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Anchor Alarm / Watch has 812 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 55% of Anchor Alarm / Watch'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.

Anchor Alarm / Watch ships an update fortnightly, navCenter monthly. The most recent releases landed on October 19, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Anchor Alarm / Watch | navCenter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (812 ratings)](https://appshunter.io/ios/app/anchor-alarm-watch/id1428485893/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/navcenter/id1580038607/reviews) |
| Number of ratings | **812** | 7 |
| Positive reviews | 54.5% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 26 MB |
| Requires iOS | 17.0 | **15.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [w+h GmbH](https://appshunter.io/developer/1142977449) | [GUARDIAN DIGITAL LTD](https://appshunter.io/developer/1447117134) |

## What reviewers say

### Anchor Alarm / Watch

[App page](https://appshunter.io/ios/app/anchor-alarm-watch/id1428485893)

This app monitors your boat's position and alerts you if it drifts outside a set radius. It offers remote monitoring with two devices and a feature to find anchorages. You can also request yacht charters directly through the app.

**Highlights:** Set custom anchor radius, Receive immediate alarm alerts, Adjust monitored area precisely, View boat location history, Remote monitoring with two devices, Search for nearby anchorages, Request yacht charters

**Features:** Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock as a subscription | $3.99 | per year |
| Anchorage search subscription | $9.49 | per year |
| 8 days anchorage search | $2.99 | one-time |
| 30 days anchorage search | $3.99 | one-time |
| Unlock as a one-time purchase | $22.99 | one-time |

**What reviewers like**

- 🚀 Accurate and efficient
- 👍 Easy to use
- 🔒 Provides security and peace of mind
- 👍 Simple and intuitive interface

**What reviewers complain about**

- 🐛 Crashes or stops working unexpectedly
- 🔋 Drains battery quickly
- 🔔 No audible alarm or alarm issues
- 🤖 Remote/pairing functionality unreliable

**Reported bugs**

- Anchor position lost repeatedly
- Alarm not triggered or not working as expected
- Connectivity issues with remote devices

**Requested features**

- Ability to adjust anchor settings remotely
- Option to change units from meters to feet
- Louder alarm volume
- Improved reliability and consistency


### 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 Anchor Alarm / Watch free?

Anchor Alarm / Watch is free to download, with in-app purchases available.

### Is navCenter free?

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

### Which has better reviews, Anchor Alarm / Watch or navCenter?

Anchor Alarm / Watch is rated higher. Anchor Alarm / Watch averages 4.7 out of 5 from 812 ratings, while navCenter averages 4.4 from 7 ratings.

### Do Anchor Alarm / Watch or navCenter have ads?

Neither Anchor Alarm / Watch nor navCenter shows ads.

### Which is updated more often, Anchor Alarm / Watch or navCenter?

Anchor Alarm / Watch ships an update fortnightly, and navCenter monthly. Most recently, Anchor Alarm / Watch was updated on October 19, 2026 and navCenter on October 22, 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.*