# 桜百景 vs 電気工事士 危険物乙4 過去問 問題集 一問一答

The clearest difference is in-app purchases: 桜百景 at none against 電気工事士 危険物乙4 過去問 問題集 一問一答's 3. 桜百景 also leads on iOS requirement (9.0 vs 16.0). 電気工事士 危険物乙4 過去問 問題集 一問一答's advantage is update cadence (every 3 weeks vs every 61 months). On price, ads and device support there is nothing between them.

Both are free to download. 電気工事士 危険物乙4 過去問 問題集 一問一答 sells 3 in-app purchases, starting at $9.99 per month. 桜百景 asks for nothing beyond the download.

桜百景 ships an update every 61 months, 電気工事士 危険物乙4 過去問 問題集 一問一答 every 3 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 桜百景 | 電気工事士 危険物乙4 過去問 問題集 一問一答 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 61 months | **Every 3 weeks** |
| Size | 104 MB | 194 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Waseda System Development](https://appshunter.io/developer/1088763930) | [Shanghai Xushu Information Technology Co., Ltd.](https://appshunter.io/developer/1733615663) |

## What reviewers say

### 桜百景

[App page](https://appshunter.io/ios/app/id1216098839)

**In-app purchases:** none


### 電気工事士 危険物乙4 過去問 問題集 一問一答

[App page](https://appshunter.io/ios/app/4/id6786999430)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 月額プラン | $9.99 | per month |
| Pro 3か月プラン | $19.99 | per 3 months |
| Pro 買い切り（永久） | $39.99 | one-time |


## Frequently asked questions

### Is 桜百景 free?

桜百景 is free to download, with no in-app purchases.

### Is 電気工事士 危険物乙4 過去問 問題集 一問一答 free?

電気工事士 危険物乙4 過去問 問題集 一問一答 is free to download, with in-app purchases available.

### Do 桜百景 or 電気工事士 危険物乙4 過去問 問題集 一問一答 have ads?

Neither 桜百景 nor 電気工事士 危険物乙4 過去問 問題集 一問一答 shows ads.

### Which is updated more often, 桜百景 or 電気工事士 危険物乙4 過去問 問題集 一問一答?

桜百景 ships an update every 61 months, and 電気工事士 危険物乙4 過去問 問題集 一問一答 every 3 weeks. Most recently, 桜百景 was updated on October 26, 2026 and 電気工事士 危険物乙4 過去問 問題集 一問一答 on October 28, 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.*