# QM Master vs Selium Performance

The clearest difference is in-app purchases: QM Master at none against Selium Performance's 4. QM Master also leads on iOS requirement (15.1 vs 18.2). Selium Performance's advantage is update cadence (every 9 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Selium Performance sells 4 in-app purchases, starting at $3.99 per month. QM Master asks for nothing beyond the download.

QM Master ships an update every 3 months, Selium Performance every 9 days. The most recent releases landed on October 27, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | QM Master | Selium Performance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Size | 24 MB | 7 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [My Gold I by Quantum Metal](https://appshunter.io/developer/1502019139) | [Selium Ltd](https://appshunter.io/developer/1812292842) |

## What reviewers say

### QM Master

[App page](https://appshunter.io/ios/app/qm-master/id6736499391)

**Features:** macOS Compatibility

**In-app purchases:** none


### Selium Performance

[App page](https://appshunter.io/ios/app/selium-performance/id6751189932)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Performance Pro Monthly | $3.99 | per month |
| Performance Max Monthly | $7.99 | per month |
| Performance Pro Yearly | $39.99 | per year |
| Performance Max Yearly | $79.99 | per year |


## Frequently asked questions

### Is QM Master free?

QM Master is free to download, with no in-app purchases.

### Is Selium Performance free?

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

### Do QM Master or Selium Performance have ads?

Neither QM Master nor Selium Performance shows ads.

### Which is updated more often, QM Master or Selium Performance?

QM Master ships an update every 3 months, and Selium Performance every 9 days. Most recently, QM Master was updated on October 27, 2026 and Selium Performance on October 18, 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.*