# Nitrox Virtual Analyzer vs Decosoft

The clearest difference is in-app purchases: Nitrox Virtual Analyzer at none against Decosoft's 8. Nitrox Virtual Analyzer also leads on iOS requirement (13.0 vs 16.4). Decosoft's advantage is update cadence (every 2 weeks vs every 24 months). On price, ads and device support there is nothing between them.

Both are free to download. Decosoft sells 8 in-app purchases, starting at $3.99 per month. Nitrox Virtual Analyzer asks for nothing beyond the download.

Nitrox Virtual Analyzer ships an update every 24 months, Decosoft every 2 weeks. The most recent releases landed on May 19, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Nitrox Virtual Analyzer | Decosoft |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 47 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Costello](https://appshunter.io/developer/1504868572) | [Decosoft s.r.o.](https://appshunter.io/developer/674555865) |

## What reviewers say

### Nitrox Virtual Analyzer

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Decosoft

[App page](https://appshunter.io/ios/app/decosoft/id6453846218)

Plan your dives with this comprehensive tech diving tool. It offers a user-friendly interface, advanced decompression models, and various dive calculators to ensure safe and enjoyable underwater adventures. Save, share, and prepare for every dive with detailed insights.

**Highlights:** User-friendly dive planning interface, Bühlmann decompression model, Detailed runtime table with graphs, Support for OC and CCR, Multiple dive calculators, Save and share dive plans

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Partner | $3.99 | per month |
| Monthly | $3.99 | per month |
| Annual Partners | $39.99 | per year |
| Ultimate | $39.99 | per year |
| Ultimate Offer | $39.99 | per year |
| Ultimate | $20.99 | one-time |
| Ultimate | $23.99 | one-time |
| Ultimate | $29.99 | one-time |


## Frequently asked questions

### Is Nitrox Virtual Analyzer free?

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

### Is Decosoft free?

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

### Do Nitrox Virtual Analyzer or Decosoft have ads?

Neither Nitrox Virtual Analyzer nor Decosoft shows ads.

### Which is updated more often, Nitrox Virtual Analyzer or Decosoft?

Nitrox Virtual Analyzer ships an update every 24 months, and Decosoft every 2 weeks. Most recently, Nitrox Virtual Analyzer was updated on May 19, 2026 and Decosoft on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*