# 背壳锁 BK vs 万能扫描王

The clearest difference is in-app purchases: 背壳锁 BK at none against 万能扫描王's 3. 背壳锁 BK also leads on update cadence (daily vs every 3 weeks) and iOS requirement (12.0 vs 16). On price, ads and device support there is nothing between them.

Both are free to download. 万能扫描王 sells 3 in-app purchases, starting at $9.99 per 7 days. 背壳锁 BK asks for nothing beyond the download.

背壳锁 BK ships an update daily, 万能扫描王 every 3 weeks. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 背壳锁 BK | 万能扫描王 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Size | 86 MB | 19 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广东必达保安系统有限公司](https://appshunter.io/developer/1252551530) | [玲娟 干](https://appshunter.io/developer/1822427885) |

## What reviewers say

### 背壳锁 BK

[App page](https://appshunter.io/ios/app/bk/id6753927706)

**In-app purchases:** none


### 万能扫描王

[App page](https://appshunter.io/ios/app/id6762968276)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包周 | $9.99 | per 7 days |
| 连续包月 | $14.99 | per month |
| 连续包季 | $29.99 | per 3 months |


## Frequently asked questions

### Is 背壳锁 BK free?

背壳锁 BK is free to download, with no in-app purchases.

### Is 万能扫描王 free?

万能扫描王 is free to download, with in-app purchases available.

### Do 背壳锁 BK or 万能扫描王 have ads?

Neither 背壳锁 BK nor 万能扫描王 shows ads.

### Which is updated more often, 背壳锁 BK or 万能扫描王?

背壳锁 BK ships an update daily, and 万能扫描王 every 3 weeks. Most recently, 背壳锁 BK was updated on October 25, 2026 and 万能扫描王 on November 5, 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.*