# Learn SQL vs QuiddityML

The clearest difference is price: QuiddityML at Free against Learn SQL's $2.99. QuiddityML also leads on update cadence (weekly vs every 6 weeks) and iOS requirement (15.1 vs 17). Learn SQL's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

QuiddityML is free to download; Learn SQL costs $2.99 up front. QuiddityML sells 2 in-app purchases, starting at $19.99 per month. Learn SQL asks for nothing beyond the download.

Learn SQL ships an update every 6 weeks, QuiddityML weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Learn SQL | QuiddityML |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/quiddityml-machine-learning/id6768768269/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 172 MB | 51 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Shahbaz Khan](https://appshunter.io/developer/1479963383) | [QuiddityML LLC](https://appshunter.io/developer/1896602968) |

## 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


### QuiddityML

[App page](https://appshunter.io/ios/app/quiddityml-machine-learning/id6768768269)

Master machine learning and AI with interactive coding exercises and spaced repetition. This app offers structured learning paths, practical projects, and interview preparation to build deep understanding and practical skills.

**Highlights:** Structured AI learning tracks, Hands-on coding exercises, Spaced repetition for retention, Beginner-friendly explanations, Interview preparation, Real-world projects

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QuiddityML Pro Monthly | $19.99 | per month |
| QuiddityML Pro Yearly | $149.99 | per year |


## Frequently asked questions

### Is Learn SQL free?

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

### Is QuiddityML free?

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

### Do Learn SQL or QuiddityML have ads?

Neither Learn SQL nor QuiddityML shows ads.

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

Learn SQL ships an update every 6 weeks, and QuiddityML weekly. Most recently, Learn SQL was updated on October 30, 2026 and QuiddityML on November 5, 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.*