# 第3種冷凍機械責任者試験問題集　りすさんシリーズ vs 2021年2級機械保全技能士学科過去問

The clearest difference is update cadence: 2021年2級機械保全技能士学科過去問 at monthly against 第3種冷凍機械責任者試験問題集　りすさんシリーズ's every 15 months. 2021年2級機械保全技能士学科過去問 also leads on price ($1.99 vs $2.99) and iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

第3種冷凍機械責任者試験問題集　りすさんシリーズ costs $2.99 and 2021年2級機械保全技能士学科過去問 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

第3種冷凍機械責任者試験問題集　りすさんシリーズ ships an update every 15 months, 2021年2級機械保全技能士学科過去問 monthly. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 第3種冷凍機械責任者試験問題集　りすさんシリーズ | 2021年2級機械保全技能士学科過去問 |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Monthly** |
| Monetization | Paid | — |
| Size | 7 MB | 7 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [shinji ikeda](https://appshunter.io/developer/1615407188) |

## What reviewers say

### 第3種冷凍機械責任者試験問題集　りすさんシリーズ

[App page](https://appshunter.io/ios/app/3/id1139518745)

This app provides practice questions for the 3rd Class Refrigeration Engineer exam, organized by year with a 5-choice format. It includes features to track incorrect answers and save progress for efficient study.

**Highlights:** Yearly question organization, 5-choice exam format, One-question-at-a-time mode, Correct answer rate display, Automatic incorrect question recall, Progress saving and resuming

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

**In-app purchases:** none


### 2021年2級機械保全技能士学科過去問

[App page](https://appshunter.io/ios/app/20212/id6443544539)

**In-app purchases:** none


## Frequently asked questions

### Is 第3種冷凍機械責任者試験問題集　りすさんシリーズ free?

第3種冷凍機械責任者試験問題集　りすさんシリーズ costs $2.99, with no in-app purchases.

### Is 2021年2級機械保全技能士学科過去問 free?

2021年2級機械保全技能士学科過去問 costs $1.99, with no in-app purchases.

### Do 第3種冷凍機械責任者試験問題集　りすさんシリーズ or 2021年2級機械保全技能士学科過去問 have ads?

Neither 第3種冷凍機械責任者試験問題集　りすさんシリーズ nor 2021年2級機械保全技能士学科過去問 shows ads.

### Which is updated more often, 第3種冷凍機械責任者試験問題集　りすさんシリーズ or 2021年2級機械保全技能士学科過去問?

第3種冷凍機械責任者試験問題集　りすさんシリーズ ships an update every 15 months, and 2021年2級機械保全技能士学科過去問 monthly. Most recently, 第3種冷凍機械責任者試験問題集　りすさんシリーズ was updated on October 8, 2026 and 2021年2級機械保全技能士学科過去問 on October 4, 2026.

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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.*