# 有聲職業安全衛生 vs 樹樺電子

The clearest difference is ads: 樹樺電子 at none against 有聲職業安全衛生's shown. 樹樺電子 also leads on update cadence (every 11 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

有聲職業安全衛生 ships an update every 4 months, 樹樺電子 every 11 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 有聲職業安全衛生 | 樹樺電子 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 11 days** |
| Size | 359 MB | 12 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Chang Chih Kai](https://appshunter.io/developer/919349563) | [Hongjie Intelligent Co., Ltd.](https://appshunter.io/developer/931178106) |

## What reviewers say

### 有聲職業安全衛生

[App page](https://appshunter.io/ios/app/id1465257531)

**Features:** macOS Compatibility

**In-app purchases:** none


### 樹樺電子

[App page](https://appshunter.io/ios/app/id1661263556)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 有聲職業安全衛生 free?

有聲職業安全衛生 is free to download, with no in-app purchases.

### Is 樹樺電子 free?

樹樺電子 is free to download, with no in-app purchases.

### Do 有聲職業安全衛生 or 樹樺電子 have ads?

有聲職業安全衛生 shows ads; 樹樺電子 does not.

### Which is updated more often, 有聲職業安全衛生 or 樹樺電子?

有聲職業安全衛生 ships an update every 4 months, and 樹樺電子 every 11 days. Most recently, 有聲職業安全衛生 was updated on October 25, 2026 and 樹樺電子 on October 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*