# Halcyon Dive Systems vs Caveradar

The clearest difference is rating: Halcyon Dive Systems at 5.0 against Caveradar's 1.0. Halcyon Dive Systems also leads on in-app purchases (none vs 1) and ratings volume (8 vs 1). Caveradar's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Caveradar sells 1 in-app purchase, starting at $1.99 per month. Halcyon Dive Systems asks for nothing beyond the download.

Halcyon Dive Systems holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Halcyon Dive Systems has 8 ratings behind it against 1, so its average is the more settled of the two.

Halcyon Dive Systems ships an update every 2 weeks, Caveradar every 4 days. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Halcyon Dive Systems | Caveradar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/halcyon-dive-systems-diving/id6738069654/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/caveradar/id6761065504/reviews) |
| Number of ratings | **8** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 159 MB | 43 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Halcyon Dive Systems](https://appshunter.io/developer/1779189368) | [Harald Franzen](https://appshunter.io/developer/1887593106) |

## What reviewers say

### Halcyon Dive Systems

[App page](https://appshunter.io/ios/app/halcyon-dive-systems-diving/id6738069654)

This app helps divers log, track, and share their underwater experiences. It offers integration with dive computers, personalized settings, and a community forum for connecting with other divers.

**Highlights:** Symbios integration for dive computer settings, Detailed dive logging and progress tracking, Social logbook for sharing dive stories, Connect with a global diving community, Personalized dive tips and advice, Exclusive benefits for Halcyon owners

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

**In-app purchases:** none


### Caveradar

[App page](https://appshunter.io/ios/app/caveradar/id6761065504)

Plan cave dives with detailed condition reports, weather context, and directions. Access key information offline and find local dive partners. Contribute reports to keep conditions updated for the community.

**Highlights:** Recent cave condition reports, Weather context for dive sites, Driving directions and access info, Offline caching of key data, Partner listings for instructors/centers, Fast, dropdown-only report contribution

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caveradar Premium | $1.99 | per month |


## Frequently asked questions

### Is Halcyon Dive Systems free?

Halcyon Dive Systems is free to download, with no in-app purchases.

### Is Caveradar free?

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

### Which has better reviews, Halcyon Dive Systems or Caveradar?

Halcyon Dive Systems is rated higher. Halcyon Dive Systems averages 5.0 out of 5 from 8 ratings, while Caveradar averages 1.0 from 1 ratings.

### Do Halcyon Dive Systems or Caveradar have ads?

Neither Halcyon Dive Systems nor Caveradar shows ads.

### Which is updated more often, Halcyon Dive Systems or Caveradar?

Halcyon Dive Systems ships an update every 2 weeks, and Caveradar every 4 days. Most recently, Halcyon Dive Systems was updated on October 4, 2026 and Caveradar on October 7, 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.*