# Z dive log vs Oceanus

The clearest difference is in-app purchases: Z dive log at none against Oceanus's 2. Z dive log also leads on ads (none vs shown). Oceanus's advantage is update cadence (every 5 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Oceanus sells 2 in-app purchases, starting at $3.99 per month. Z dive log asks for nothing beyond the download.

Z dive log ships an update every 4 months, Oceanus every 5 days. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Z dive log | Oceanus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/z-dive-log/id1202116382/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 40 MB | 55 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SCUBAPRO ASIA LTD.](https://appshunter.io/developer/1202116381) | [Mikhail Listratsenka](https://appshunter.io/developer/6773648263) |

## What reviewers say

### Z dive log

[App page](https://appshunter.io/ios/app/z-dive-log/id1202116382)

Easily manage your SCUBAPRO Z1 dive computer logs and settings. Download dive data via Bluetooth, add details like location and photos, and configure your dive computer's preferences.

**Highlights:** Download dive logs via Bluetooth, Enter and edit dive log details, Add photos to dive logs, View dive statistics at a glance, Configure Z1 dive computer settings, Save and share depth graph images

**In-app purchases:** none


### Oceanus

[App page](https://appshunter.io/ios/app/oceanus-scuba-dive-log/id6773648261)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Z dive log free?

Z dive log is free to download, with no in-app purchases.

### Is Oceanus free?

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

### Do Z dive log or Oceanus have ads?

Oceanus shows ads; Z dive log does not.

### Which is updated more often, Z dive log or Oceanus?

Z dive log ships an update every 4 months, and Oceanus every 5 days. Most recently, Z dive log was updated on November 2, 2026 and Oceanus on November 10, 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.*