# SQL Mysteries vs MiauDoku

The clearest difference is in-app purchases: MiauDoku at none against SQL Mysteries's 1. MiauDoku also leads on update cadence (every 10 days vs every 6 weeks). SQL Mysteries's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SQL Mysteries sells 1 one-off in-app purchase. MiauDoku asks for nothing beyond the download.

SQL Mysteries ships an update every 6 weeks, MiauDoku every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | SQL Mysteries | MiauDoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sql-mysteries-cold-query/id6789938253/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 15 MB | 96 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Andrew Mikhael](https://appshunter.io/developer/6789938255) | [Mardem Mesquita](https://appshunter.io/developer/1889282408) |

## What reviewers say

### SQL Mysteries

[App page](https://appshunter.io/ios/app/sql-mysteries-cold-query/id6789938253)

Solve detective cases by writing real SQL queries to uncover clues hidden within databases. This game offers an interactive way to learn SQL concepts through engaging mystery scenarios, providing instant feedback on your progress.

**Highlights:** Learn SQL through mystery cases, Practice SELECT, WHERE, JOINs, and more, Instant query feedback, Build an evidence board, Track progress with detective dossier, Unlock full case library

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Season Pass | $5.99 | one-time |


### MiauDoku

[App page](https://appshunter.io/ios/app/miaudoku/id6810058645)

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

**In-app purchases:** none


## Frequently asked questions

### Is SQL Mysteries free?

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

### Is MiauDoku free?

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

### Do SQL Mysteries or MiauDoku have ads?

MiauDoku shows ads; SQL Mysteries does not.

### Which is updated more often, SQL Mysteries or MiauDoku?

SQL Mysteries ships an update every 6 weeks, and MiauDoku every 10 days. Most recently, SQL Mysteries was updated on October 24, 2026 and MiauDoku on October 24, 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.*