# 第3種冷凍機械責任者試験問題集　りすさんシリーズ vs WabunMorsePro

The clearest difference is update cadence: WabunMorsePro at every 5 weeks 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. WabunMorsePro also leads on review sentiment (100% vs 75%) and iOS requirement (12.0 vs 18.6). On price, ads, in-app purchases and monetization model 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 WabunMorsePro $2.99 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, WabunMorsePro every 5 weeks. The most recent releases landed on October 8, 2026 and October 17, 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 | WabunMorsePro |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 7 MB | 11 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## 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


### WabunMorsePro

[App page](https://appshunter.io/ios/app/wabunmorsepro/id1577083481)

Learn Japanese KANA-based Morse code with this comprehensive practice app. It offers step-by-step lessons, random generation for reception practice, and customizable audio settings. Additional features include reverb, noise simulation, and various keying methods for realistic training.

**Highlights:** KANA Morse code learning, Step-by-step study modules, Random generation for reception practice, Customizable playback speed and tone, Reverb and noise simulation, Multiple keying methods, Adjustable sound training

**Features:** macOS Compatibility

**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 WabunMorsePro free?

WabunMorsePro costs $2.99, 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 WabunMorsePro 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 WabunMorsePro 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 WabunMorsePro?

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 WabunMorsePro every 5 weeks. 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 WabunMorsePro on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*