# ScanMaster vs 防窥侠

The clearest difference is iOS requirement: ScanMaster at 11.0 against 防窥侠's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. ScanMaster sells 5 in-app purchases, starting at $3.99 per 7 days and 防窥侠 sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScanMaster ships an update every 5 weeks, 防窥侠 every 3 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ScanMaster | 防窥侠 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/scanmaster-scan-room-devices/id1624636159/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 8 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Starlink Network Technology Co., Ltd.](https://appshunter.io/developer/1624636161) | [艇 徐](https://appshunter.io/developer/1720872299) |

## What reviewers say

### ScanMaster

[App page](https://appshunter.io/ios/app/scanmaster-scan-room-devices/id1624636159)

This utility app helps travelers protect their privacy by detecting wireless, red dot, magnetic field, and Bluetooth devices. It also provides guides on finding spy cameras in various situations.

**Highlights:** Wireless device scanning, Red dot detection, Magnetic field scanning, Bluetooth scanning, Anti-spy camera guides, Privacy protection

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Membership-New version | $3.99 | per 7 days |
| Weekly membership | $11.90 | per 7 days |
| Seasonal membership | $24.99 | per 3 months |
| Forever membership | $27.90 | one-time |
| 超级会员 | $29.99 | one-time |


### 防窥侠

[App page](https://appshunter.io/ios/app/id6502298640)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $3.99 | per 7 days |
| 月会员 | $6.99 | per month |
| 年会员 | $29.99 | per year |


## Frequently asked questions

### Is ScanMaster free?

ScanMaster is free to download, with in-app purchases available.

### Is 防窥侠 free?

防窥侠 is free to download, with in-app purchases available.

### Do ScanMaster or 防窥侠 have ads?

Neither ScanMaster nor 防窥侠 shows ads.

### Which is updated more often, ScanMaster or 防窥侠?

ScanMaster ships an update every 5 weeks, and 防窥侠 every 3 weeks. Most recently, ScanMaster was updated on October 24, 2026 and 防窥侠 on October 14, 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.*