# Halcyon Dive Systems vs My Divejunk

The clearest difference is update cadence: My Divejunk at every 5 days against Halcyon Dive Systems's every 3 weeks. My Divejunk also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Halcyon Dive Systems ships an update every 3 weeks, My Divejunk every 5 days. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Halcyon Dive Systems | My Divejunk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/halcyon-dive-systems-diving/id6738069654/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 162 MB | 44 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Halcyon Dive Systems](https://appshunter.io/developer/1779189368) | [Rogier Visser](https://appshunter.io/developer/672667764) |

## 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


### My Divejunk

[App page](https://appshunter.io/ios/app/my-divejunk/id6758464173)

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

**In-app purchases:** none


## Frequently asked questions

### Is Halcyon Dive Systems free?

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

### Is My Divejunk free?

My Divejunk is free to download, with no in-app purchases.

### Do Halcyon Dive Systems or My Divejunk have ads?

Neither Halcyon Dive Systems nor My Divejunk shows ads.

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

Halcyon Dive Systems ships an update every 3 weeks, and My Divejunk every 5 days. Most recently, Halcyon Dive Systems was updated on October 21, 2026 and My Divejunk on October 15, 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.*