# 2級ボイラー技士問題集lite　りすさんシリーズ vs ガンマ・高圧・潜水　資格　plus

The clearest difference is price: 2級ボイラー技士問題集lite　りすさんシリーズ at Free against ガンマ・高圧・潜水　資格　plus's $4.99. 2級ボイラー技士問題集lite　りすさんシリーズ also leads on update cadence (every 16 months vs every 57 months). ガンマ・高圧・潜水　資格　plus's advantage is iOS requirement (15.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

2級ボイラー技士問題集lite　りすさんシリーズ is free to download; ガンマ・高圧・潜水　資格　plus costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2級ボイラー技士問題集lite　りすさんシリーズ ships an update every 16 months, ガンマ・高圧・潜水　資格　plus every 57 months. The most recent releases landed on October 8, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | 2級ボイラー技士問題集lite　りすさんシリーズ | ガンマ・高圧・潜水　資格　plus |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 16 months** | Every 57 months |
| Monetization | — | Paid |
| Size | 5 MB | 139 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Kazuki Baba](https://appshunter.io/developer/903350438) | [kumiko harada](https://appshunter.io/developer/1501953551) |

## What reviewers say

### 2級ボイラー技士問題集lite　りすさんシリーズ

[App page](https://appshunter.io/ios/app/2lite/id907765542)

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

**In-app purchases:** none


### ガンマ・高圧・潜水　資格　plus

[App page](https://appshunter.io/ios/app/plus/id1501954182)

This app provides past exam questions for Gamma Ray Radiography Supervisor, Diver, and High-Pressure Gas Chamber Operator certifications. It focuses on review and allows free updates to the latest questions after a one-time purchase. Customize your study experience with adjustable text and easy web linking.

**Highlights:** Past exam questions for multiple certifications, Free updates for latest questions, Includes diagrams and figures, Customizable text size and color, Web linking for detailed explanations, One-question-at-a-time format for mobile

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

**In-app purchases:** none


## Frequently asked questions

### Is 2級ボイラー技士問題集lite　りすさんシリーズ free?

2級ボイラー技士問題集lite　りすさんシリーズ is free to download, with no in-app purchases.

### Is ガンマ・高圧・潜水　資格　plus free?

ガンマ・高圧・潜水　資格　plus costs $4.99, with no in-app purchases.

### Do 2級ボイラー技士問題集lite　りすさんシリーズ or ガンマ・高圧・潜水　資格　plus have ads?

Neither 2級ボイラー技士問題集lite　りすさんシリーズ nor ガンマ・高圧・潜水　資格　plus shows ads.

### Which is updated more often, 2級ボイラー技士問題集lite　りすさんシリーズ or ガンマ・高圧・潜水　資格　plus?

2級ボイラー技士問題集lite　りすさんシリーズ ships an update every 16 months, and ガンマ・高圧・潜水　資格　plus every 57 months. Most recently, 2級ボイラー技士問題集lite　りすさんシリーズ was updated on October 8, 2026 and ガンマ・高圧・潜水　資格　plus on August 18, 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.*