# 第２種放射線取扱主任者試験対策　過去問をすばやくチェック vs WorkBookTimer

The clearest difference is iOS requirement: 第２種放射線取扱主任者試験対策　過去問をすばやくチェック at 11.0 against WorkBookTimer's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

第２種放射線取扱主任者試験対策　過去問をすばやくチェック ships an update every 27 months, WorkBookTimer every 24 months. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 第２種放射線取扱主任者試験対策　過去問をすばやくチェック | WorkBookTimer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 24 months** |
| Size | 10 MB | 0 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Japan Radioisotope Association](https://appshunter.io/developer/1116850094) | [Atsushi Yamada](https://appshunter.io/developer/301497489) |

## What reviewers say

### 第２種放射線取扱主任者試験対策　過去問をすばやくチェック

[App page](https://appshunter.io/ios/app/id1236058523)

**Features:** macOS Compatibility

**In-app purchases:** none


### WorkBookTimer

[App page](https://appshunter.io/ios/app/workbooktimer/id1361011991)

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

**In-app purchases:** none


## Frequently asked questions

### Is 第２種放射線取扱主任者試験対策　過去問をすばやくチェック free?

第２種放射線取扱主任者試験対策　過去問をすばやくチェック is free to download, with no in-app purchases.

### Is WorkBookTimer free?

WorkBookTimer is free to download, with no in-app purchases.

### Do 第２種放射線取扱主任者試験対策　過去問をすばやくチェック or WorkBookTimer have ads?

Neither 第２種放射線取扱主任者試験対策　過去問をすばやくチェック nor WorkBookTimer shows ads.

### Which is updated more often, 第２種放射線取扱主任者試験対策　過去問をすばやくチェック or WorkBookTimer?

第２種放射線取扱主任者試験対策　過去問をすばやくチェック ships an update every 27 months, and WorkBookTimer every 24 months. Most recently, 第２種放射線取扱主任者試験対策　過去問をすばやくチェック was updated on October 6, 2026 and WorkBookTimer on September 29, 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.*