# Big Data Knowledge Test vs SQL Query Reasoning

The clearest difference is in-app purchases: SQL Query Reasoning at none against Big Data Knowledge Test's 2. SQL Query Reasoning also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.2). On price and ads there is nothing between them.

Both are free to download. Big Data Knowledge Test sells 2 in-app purchases, starting at $13.99 per month. SQL Query Reasoning asks for nothing beyond the download.

## The numbers

| Metric | Big Data Knowledge Test | SQL Query Reasoning |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 9 MB | 38 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### Big Data Knowledge Test

[App page](https://appshunter.io/ios/app/big-data-knowledge-test/id6740737722)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $13.99 | per month |
| Lifetime version | $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 Big Data Knowledge Test free?

Big Data Knowledge Test 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 Big Data Knowledge Test or SQL Query Reasoning have ads?

Neither Big Data Knowledge Test 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.*