# システムアーキテクト vs 一問から身につく SQL

The clearest difference is in-app purchases: 一問から身につく SQL at none against システムアーキテクト's 1. システムアーキテクト's advantage is iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. システムアーキテクト sells 1 one-off in-app purchase. 一問から身につく SQL asks for nothing beyond the download.

## The numbers

| Metric | システムアーキテクト | 一問から身につく SQL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 5 MB | 1 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [RYUJI ADACHI](https://appshunter.io/developer/1877885263) |

## What reviewers say

### システムアーキテクト

[App page](https://appshunter.io/ios/app/id6757303573)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| システムアーキテクト 試験対策 | $1.99 | one-time |


### 一問から身につく SQL

[App page](https://appshunter.io/ios/app/sql/id6760984838)

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

**In-app purchases:** none


## Frequently asked questions

### Is システムアーキテクト free?

システムアーキテクト is free to download, with in-app purchases available.

### Is 一問から身につく SQL free?

一問から身につく SQL is free to download, with no in-app purchases.

### Do システムアーキテクト or 一問から身につく SQL have ads?

Neither システムアーキテクト nor 一問から身につく SQL 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.*