# Spinlock Rig vs Buoy Zone

The clearest difference is review sentiment: Spinlock Rig at 80% against Buoy Zone's 25%. Spinlock Rig also leads on rating (4.0 vs 3.0) and in-app purchases (none vs 2). Buoy Zone's advantage is update cadence (fortnightly vs every 11 months) and ratings volume (3 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Buoy Zone sells 2 in-app purchases, starting at $8.49 per month. Spinlock Rig asks for nothing beyond the download.

Spinlock Rig holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 80% of Spinlock Rig's written reviews are positive against 25% of Buoy Zone's.

Spinlock Rig ships an update every 11 months, Buoy Zone fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Spinlock Rig | Buoy Zone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/spinlock-rig-sense/id1002143905/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/buoy-zone/id1467318416/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **80.0% of reviews** | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 90 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spinlock Ltd](https://appshunter.io/developer/1023147633) | [OCEAN LABS LIMITED](https://appshunter.io/developer/1536082400) |

## What reviewers say

### Spinlock Rig

[App page](https://appshunter.io/ios/app/spinlock-rig-sense/id1002143905)

Log and manage sailing rig settings for multiple boats and crew. Easily customize, share, and access your sailing data anytime, anywhere. Offers preloaded settings and import options for various boat classes.

**Highlights:** Log rig settings for multiple boats, Share settings with crew and partners, Intuitive and easy-to-use interface, Preloaded settings for various classes, Customize, duplicate, import, and delete logs, Offline access to stored information

**Features:** macOS Compatibility

**In-app purchases:** none


### Buoy Zone

[App page](https://appshunter.io/ios/app/buoy-zone/id1467318416)

This app simplifies yacht racing course setup for sailing clubs and race officers. It allows for real-time course sharing, mark laying guidance with compass directions, and participant tracking on a map. Streamline race management and focus on the competition.

**Highlights:** Real-time course sharing, Mark laying guidance, Participant tracking on map, Compass direction and bearing, Distance calculation, Course updates

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Race Officer Monthly | $8.49 | per month |
| Race Officer Annual | $43.99 | per year |


## Frequently asked questions

### Is Spinlock Rig free?

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

### Is Buoy Zone free?

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

### Which has better reviews, Spinlock Rig or Buoy Zone?

Spinlock Rig is rated higher. Spinlock Rig averages 4.0 out of 5 from 1 ratings, while Buoy Zone averages 3.0 from 3 ratings.

### Do Spinlock Rig or Buoy Zone have ads?

Neither Spinlock Rig nor Buoy Zone shows ads.

### Which is updated more often, Spinlock Rig or Buoy Zone?

Spinlock Rig ships an update every 11 months, and Buoy Zone fortnightly. Most recently, Spinlock Rig was updated on November 1, 2026 and Buoy Zone on November 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.*