# Rails技術者認定試験 vs コアQ｜JSTQB Foundation Level対策

The clearest difference is price: コアQ｜JSTQB Foundation Level対策 at Free against Rails技術者認定試験's $1.99. Rails技術者認定試験's advantage is in-app purchases (none vs 3) and iOS requirement (13.4 vs 15.1). On ads and device support there is nothing between them.

コアQ｜JSTQB Foundation Level対策 is free to download; Rails技術者認定試験 costs $1.99 up front. コアQ｜JSTQB Foundation Level対策 sells 3 one-off in-app purchases. Rails技術者認定試験 asks for nothing beyond the download.

## The numbers

| Metric | Rails技術者認定試験 | コアQ｜JSTQB Foundation Level対策 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Size | 20 MB | 48 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Daisuke Matsubara](https://appshunter.io/developer/1720755722) | [TAKANORI TAKEUCHI](https://appshunter.io/developer/1871324782) |

## What reviewers say

### Rails技術者認定試験

[App page](https://appshunter.io/ios/app/rails/id6477298979)

**Features:** macOS Compatibility

**In-app purchases:** none


### コアQ｜JSTQB Foundation Level対策

[App page](https://appshunter.io/ios/app/qjstqb-foundation-level/id6769045249)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 論点まとめ完全パック | $5.99 | one-time |
| JSTQB演習完全パック | $9.99 | one-time |
| JSTQB合格パック | $11.99 | one-time |


## Frequently asked questions

### Is Rails技術者認定試験 free?

Rails技術者認定試験 costs $1.99, with no in-app purchases.

### Is コアQ｜JSTQB Foundation Level対策 free?

コアQ｜JSTQB Foundation Level対策 is free to download, with in-app purchases available.

### Do Rails技術者認定試験 or コアQ｜JSTQB Foundation Level対策 have ads?

Neither Rails技術者認定試験 nor コアQ｜JSTQB Foundation Level対策 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.*