# D426 Mastery vs SQL Query Reasoning

The clearest difference is in-app purchases: SQL Query Reasoning at none against D426 Mastery's 2. SQL Query Reasoning also leads on iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. D426 Mastery sells 2 in-app purchases, starting at $7.99 per month. SQL Query Reasoning asks for nothing beyond the download.

## The numbers

| Metric | D426 Mastery | SQL Query Reasoning |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 4 MB | 38 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JOHN TIMOTHY DISALLE](https://appshunter.io/developer/1886538582) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### D426 Mastery

[App page](https://appshunter.io/ios/app/d426-mastery/id6761743682)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Lifetime Access | $24.99 | one-time |


### SQL Query Reasoning

[App page](https://appshunter.io/ios/app/sql-query-reasoning/id6773075047)

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

**In-app purchases:** none


## Frequently asked questions

### Is D426 Mastery free?

D426 Mastery is free to download, with in-app purchases available.

### Is SQL Query Reasoning free?

SQL Query Reasoning is free to download, with no in-app purchases.

### Do D426 Mastery or SQL Query Reasoning have ads?

Neither D426 Mastery nor SQL Query Reasoning shows ads.

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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.*