# 第１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 update cadence: 第１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 every 12 months against WorkBookTimer's every 24 months. 第１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 also leads on iOS requirement (11.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

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

第１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 12 months, WorkBookTimer every 24 months. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 第１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 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 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１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/id1116850095)

**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１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１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１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１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１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１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 12 months, and WorkBookTimer every 24 months. Most recently, 第１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 September 19, 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.*