# Learn SQL vs ML_Engineering

The clearest difference is price: ML_Engineering at Free against Learn SQL's $2.99. ML_Engineering also leads on update cadence (every 3 weeks vs every 6 weeks). Learn SQL's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

ML_Engineering is free to download; Learn SQL costs $2.99 up front. ML_Engineering sells 1 in-app purchase, starting at $1.99 per month. Learn SQL asks for nothing beyond the download.

Learn SQL ships an update every 6 weeks, ML_Engineering every 3 weeks. The most recent releases landed on September 8, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Learn SQL | ML_Engineering |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 172 MB | 5 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Shahbaz Khan](https://appshunter.io/developer/1479963383) | [Luke Mclaughlin](https://appshunter.io/developer/1893671036) |

## What reviewers say

### Learn SQL

[App page](https://appshunter.io/ios/app/learn-sql-database-mastery/id6755876223)

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

**In-app purchases:** none


### ML_Engineering

[App page](https://appshunter.io/ios/app/ml-engineering/id6789723889)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ML_Engineering Pro | $1.99 | per month |


## Frequently asked questions

### Is Learn SQL free?

Learn SQL costs $2.99, with no in-app purchases.

### Is ML_Engineering free?

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

### Do Learn SQL or ML_Engineering have ads?

Neither Learn SQL nor ML_Engineering shows ads.

### Which is updated more often, Learn SQL or ML_Engineering?

Learn SQL ships an update every 6 weeks, and ML_Engineering every 3 weeks. Most recently, Learn SQL was updated on September 8, 2026 and ML_Engineering on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*