# 手环钥匙 vs 百事通 (Voo)

The clearest difference is update cadence: 百事通 (Voo) at weekly against 手环钥匙's fortnightly. 手环钥匙's advantage is iOS requirement (9.0 vs 17.6). 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.

手环钥匙 ships an update fortnightly, 百事通 (Voo) weekly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 手环钥匙 | 百事通 (Voo) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/voo/id6747854851/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 65.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 44 MB | 152 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BYD Auto Industry Company Limited](https://appshunter.io/developer/888165335) | [Voo Dev LLC](https://appshunter.io/developer/1788147521) |

## What reviewers say

### 手环钥匙

[App page](https://appshunter.io/ios/app/id1406134435)

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

**In-app purchases:** none


### 百事通 (Voo)

[App page](https://appshunter.io/ios/app/voo/id6747854851)

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

**In-app purchases:** none


## Frequently asked questions

### Is 手环钥匙 free?

手环钥匙 is free to download, with no in-app purchases.

### Is 百事通 (Voo) free?

百事通 (Voo) is free to download, with no in-app purchases.

### Do 手环钥匙 or 百事通 (Voo) have ads?

Neither 手环钥匙 nor 百事通 (Voo) shows ads.

### Which is updated more often, 手环钥匙 or 百事通 (Voo)?

手环钥匙 ships an update fortnightly, and 百事通 (Voo) weekly. Most recently, 手环钥匙 was updated on October 20, 2026 and 百事通 (Voo) on October 24, 2026.

---

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