# Nitrox Virtual Analyzer vs Sym Junk

The clearest difference is in-app purchases: Nitrox Virtual Analyzer at none against Sym Junk's 1. Nitrox Virtual Analyzer also leads on iOS requirement (13.0 vs 15.0). Sym Junk's advantage is update cadence (every 3 days vs every 24 months). On price, ads and device support there is nothing between them.

Both are free to download. Sym Junk sells 1 one-off in-app purchase. Nitrox Virtual Analyzer asks for nothing beyond the download.

Nitrox Virtual Analyzer ships an update every 24 months, Sym Junk every 3 days. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Nitrox Virtual Analyzer | Sym Junk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 3 days** |
| Size | 6 MB | 59 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Costello](https://appshunter.io/developer/1504868572) | [Rogier Visser](https://appshunter.io/developer/672667764) |

## What reviewers say

### Nitrox Virtual Analyzer

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Sym Junk

[App page](https://appshunter.io/ios/app/sym-junk/id6794658823)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Divejunk | $6.99 | one-time |


## Frequently asked questions

### Is Nitrox Virtual Analyzer free?

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

### Is Sym Junk free?

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

### Do Nitrox Virtual Analyzer or Sym Junk have ads?

Neither Nitrox Virtual Analyzer nor Sym Junk shows ads.

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

Nitrox Virtual Analyzer ships an update every 24 months, and Sym Junk every 3 days. Most recently, Nitrox Virtual Analyzer was updated on September 26, 2026 and Sym Junk on September 29, 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.*