# One MST vs Nomion Certificate

The clearest difference is iOS requirement: One MST at 13.0 against Nomion Certificate's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

One MST ships an update every 2 weeks, Nomion Certificate fortnightly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | One MST | Nomion Certificate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 120 MB | 12 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [XTEL SOFTWARE DEVELOPMENT AND INTEGRATED SOLUTIONS JOINT STOCK COMPANY](https://appshunter.io/developer/1380594630) | [Phygital Labs](https://appshunter.io/developer/1796309250) |

## What reviewers say

### One MST

[App page](https://appshunter.io/ios/app/one-mst/id1562108303)

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

**In-app purchases:** none


### Nomion Certificate

[App page](https://appshunter.io/ios/app/nomion-certificate/id6741954332)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One MST free?

One MST is free to download, with no in-app purchases.

### Is Nomion Certificate free?

Nomion Certificate is free to download, with no in-app purchases.

### Do One MST or Nomion Certificate have ads?

Neither One MST nor Nomion Certificate shows ads.

### Which is updated more often, One MST or Nomion Certificate?

One MST ships an update every 2 weeks, and Nomion Certificate fortnightly. Most recently, One MST was updated on November 7, 2026 and Nomion Certificate on November 8, 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.*