# クラウドサイン NOW vs Hazmat Class B4 Exam Prep JP

The clearest difference is ads: クラウドサイン NOW at none against Hazmat Class B4 Exam Prep JP's shown. クラウドサイン NOW also leads on iOS requirement (11.0 vs 16). Hazmat Class B4 Exam Prep JP's advantage is update cadence (monthly vs every 4 months) and device support (3 vs 1). On price 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.

クラウドサイン NOW ships an update every 4 months, Hazmat Class B4 Exam Prep JP monthly. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | クラウドサイン NOW | Hazmat Class B4 Exam Prep JP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Monthly** |
| Size | 35 MB | 15 MB |
| Requires iOS | **11.0** | 16 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BENGO4.COM, INC.](https://appshunter.io/developer/1479934911) | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) |

## What reviewers say

### クラウドサイン NOW

[App page](https://appshunter.io/ios/app/now/id1479934912)

**In-app purchases:** none


### Hazmat Class B4 Exam Prep JP

[App page](https://appshunter.io/ios/app/hazmat-class-b4-exam-prep-jp/id6782099051)

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

**In-app purchases:** none


## Frequently asked questions

### Is クラウドサイン NOW free?

クラウドサイン NOW is free to download, with no in-app purchases.

### Is Hazmat Class B4 Exam Prep JP free?

Hazmat Class B4 Exam Prep JP is free to download, with no in-app purchases.

### Do クラウドサイン NOW or Hazmat Class B4 Exam Prep JP have ads?

Hazmat Class B4 Exam Prep JP shows ads; クラウドサイン NOW does not.

### Which is updated more often, クラウドサイン NOW or Hazmat Class B4 Exam Prep JP?

クラウドサイン NOW ships an update every 4 months, and Hazmat Class B4 Exam Prep JP monthly. Most recently, クラウドサイン NOW was updated on October 19, 2026 and Hazmat Class B4 Exam Prep JP on October 25, 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.*