# Dive Log vs Halcyon Dive Systems

The clearest difference is price: Halcyon Dive Systems at Free against Dive Log's $14.99. Halcyon Dive Systems also leads on in-app purchases (none vs 13) and rating (5.0 vs 4.7). Dive Log's advantage is ratings volume (106 vs 8) and chart position (#186 vs unranked). On ads there is nothing between them.

Halcyon Dive Systems is free to download; Dive Log costs $14.99 up front. Dive Log sells 11 one-off in-app purchases. Halcyon Dive Systems asks for nothing beyond the download.

Halcyon Dive Systems holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Dive Log has 106 ratings behind it against 8, so its average is the more settled of the two.

Dive Log ships an update monthly, Halcyon Dive Systems every 2 weeks. The most recent releases landed on September 23, 2026 and July 24, 2026 respectively.

## The numbers

| Metric | Dive Log | Halcyon Dive Systems |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | [4.7 (106 ratings)](https://appshunter.io/ios/app/dive-log/id301049600/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/halcyon-dive-systems-diving/id6738069654/reviews)** |
| Number of ratings | **106** | 8 |
| Positive reviews | 83.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#186** | — |
| Size | 33 MB | 159 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Greg Mclaughlin](https://appshunter.io/developer/284919983) | [Halcyon Dive Systems](https://appshunter.io/developer/1779189368) |

## What reviewers say

### Dive Log

[App page](https://appshunter.io/ios/app/dive-log/id301049600)

**Currently charting:** #186 Top Paid · Sports (US App Store)

Log your SCUBA dives with detailed information, including GPS coordinates and dive buddy details. Supports metric and imperial units, and integrates with desktop software for comprehensive dive history management.

**Highlights:** SCUBA diving logbook, GPS coordinate capture, Dive buddy integration, Dive data and statistics, Metric and Imperial units, Dive computer data import, Bluetooth LE transfer

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suunto Bluetooth Download | $2.99 | one-time |
| Mares Bluetooth Download | $2.99 | one-time |
| Crest Bluetooth Download | $2.99 | one-time |
| Shearwater Download | $2.99 | one-time |
| bluebuddy Download | $2.99 | one-time |
| SCUBAPRO Download | $2.99 | one-time |
| Pelagic Bluetooth Download | $2.99 | one-time |
| Cressi Bluetooth Download | $2.99 | one-time |
| Ratio Bluetooth Download | $2.99 | one-time |
| Halcyon Bluetooth Download | $2.99 | one-time |
| DCbuddy Support | $4.99 | one-time |


### 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


## Frequently asked questions

### Is Dive Log free?

Dive Log costs $14.99, and also offers in-app purchases.

### Is Halcyon Dive Systems free?

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

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

Halcyon Dive Systems is rated higher. Dive Log averages 4.7 out of 5 from 106 ratings, while Halcyon Dive Systems averages 5.0 from 8 ratings.

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

Neither Dive Log nor Halcyon Dive Systems shows ads.

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

Dive Log ships an update monthly, and Halcyon Dive Systems every 2 weeks. Most recently, Dive Log was updated on September 23, 2026 and Halcyon Dive Systems on July 24, 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.*