# Pro Mastery vs PSC Mocklab

The clearest difference is in-app purchases: PSC Mocklab at none against Pro Mastery's 6. PSC Mocklab also leads on update cadence (every 5 days vs every 11 days). Pro Mastery's advantage is device support (3 vs 1) and iOS requirement (13 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Pro Mastery sells 6 one-off in-app purchases. PSC Mocklab asks for nothing beyond the download.

Pro Mastery ships an update every 11 days, PSC Mocklab every 5 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pro Mastery | PSC Mocklab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 5 days** |
| Size | 58 MB | 90 MB |
| Requires iOS | **13** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MASTER ARROW PRIVATE LIMITED](https://appshunter.io/developer/1626483866) | [Mathematica LLP](https://appshunter.io/developer/1896322186) |

## What reviewers say

### Pro Mastery

[App page](https://appshunter.io/ios/app/pro-mastery/id1630316048)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English mastery basic | $17.99 | one-time |
| English mastery intermediate | $17.99 | one-time |
| english mastery course | $17.99 | one-time |
| Master Fit basic | $17.99 | one-time |
| Master Fit intermediate | $17.99 | one-time |
| Master Fit advance | $17.99 | one-time |


### PSC Mocklab

[App page](https://appshunter.io/ios/app/psc-mocklab/id6795994599)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pro Mastery free?

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

### Is PSC Mocklab free?

PSC Mocklab is free to download, with no in-app purchases.

### Do Pro Mastery or PSC Mocklab have ads?

Neither Pro Mastery nor PSC Mocklab shows ads.

### Which is updated more often, Pro Mastery or PSC Mocklab?

Pro Mastery ships an update every 11 days, and PSC Mocklab every 5 days. Most recently, Pro Mastery was updated on November 7, 2026 and PSC Mocklab on October 31, 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.*