# SystemArchitect vs Query Dojo

The clearest difference is price: Query Dojo at Free against SystemArchitect's $12.99. SystemArchitect's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Query Dojo is free to download; SystemArchitect costs $12.99 up front. Query Dojo sells 2 in-app purchases, starting at $7.95 per month. SystemArchitect asks for nothing beyond the download.

## The numbers

| Metric | SystemArchitect | Query Dojo |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/query-dojo-sql-practice/id6757411525/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | — | Freemium |
| Size | 13 MB | 9 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Buydeepdiscount.com LLC](https://appshunter.io/developer/817177888) | [Rasim Salimov](https://appshunter.io/developer/1824330241) |

## What reviewers say

### SystemArchitect

[App page](https://appshunter.io/ios/app/systemarchitect/id6743953529)

**Features:** macOS Compatibility

**In-app purchases:** none


### Query Dojo

[App page](https://appshunter.io/ios/app/query-dojo-sql-practice/id6757411525)

Master SQL for tech interviews with hands-on challenges and interactive lessons. Practice real-world queries from top tech companies and track your progress to become job-ready.

**Highlights:** Hands-on SQL challenges, Real interview questions, Interactive lessons, SQL sandbox environment, Progress tracking, Daily streaks and achievements

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SQL Master Monthly Subscription | $7.95 | per month |
| SQL Master Yearly Subscription | $49.95 | per year |


## Frequently asked questions

### Is SystemArchitect free?

SystemArchitect costs $12.99, with no in-app purchases.

### Is Query Dojo free?

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

### Do SystemArchitect or Query Dojo have ads?

Neither SystemArchitect nor Query Dojo 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.*