# Nitrox Virtual Analyzer vs Scuba Obsession Dive Log

The clearest difference is update cadence: Scuba Obsession Dive Log at every 3 days against Nitrox Virtual Analyzer's every 24 months. Nitrox Virtual Analyzer's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

Nitrox Virtual Analyzer ships an update every 24 months, Scuba Obsession Dive Log every 3 days. The most recent releases landed on May 19, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Nitrox Virtual Analyzer | Scuba Obsession Dive Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 days** |
| Size | 6 MB | 61 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Costello](https://appshunter.io/developer/1504868572) | [Christian Jones](https://appshunter.io/developer/1791755334) |

## What reviewers say

### Nitrox Virtual Analyzer

[App page](https://appshunter.io/ios/app/nitrox-virtual-analyzer/id1505174941)

**Features:** macOS Compatibility

**In-app purchases:** none


### Scuba Obsession Dive Log

[App page](https://appshunter.io/ios/app/scuba-obsession-dive-log/id6740821537)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nitrox Virtual Analyzer free?

Nitrox Virtual Analyzer is free to download, with no in-app purchases.

### Is Scuba Obsession Dive Log free?

Scuba Obsession Dive Log is free to download, with no in-app purchases.

### Do Nitrox Virtual Analyzer or Scuba Obsession Dive Log have ads?

Neither Nitrox Virtual Analyzer nor Scuba Obsession Dive Log shows ads.

### Which is updated more often, Nitrox Virtual Analyzer or Scuba Obsession Dive Log?

Nitrox Virtual Analyzer ships an update every 24 months, and Scuba Obsession Dive Log every 3 days. Most recently, Nitrox Virtual Analyzer was updated on May 19, 2026 and Scuba Obsession Dive Log on September 16, 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.*