# Rails技術者認定試験 vs 第三種冷凍機械責任者 | 2026年対策問題

The clearest difference is iOS requirement: Rails技術者認定試験 at 13.4 against 第三種冷凍機械責任者 | 2026年対策問題's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Rails技術者認定試験 costs $1.99 and 第三種冷凍機械責任者 | 2026年対策問題 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Rails技術者認定試験 | 第三種冷凍機械責任者 | 2026年対策問題 |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 20 MB | 5 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daisuke Matsubara](https://appshunter.io/developer/1720755722) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## 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


### 第三種冷凍機械責任者 | 2026年対策問題

[App page](https://appshunter.io/ios/app/2026/id6774375685)

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

**In-app purchases:** none


## 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 第三種冷凍機械責任者 | 2026年対策問題 free?

第三種冷凍機械責任者 | 2026年対策問題 costs $1.99, with no in-app purchases.

### Do Rails技術者認定試験 or 第三種冷凍機械責任者 | 2026年対策問題 have ads?

Neither Rails技術者認定試験 nor 第三種冷凍機械責任者 | 2026年対策問題 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.*