# ScanMaster vs Kigen

The clearest difference is ads: ScanMaster at none against Kigen's shown. ScanMaster also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.0). On price, update cadence 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 Kigen sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScanMaster ships an update every 5 weeks, Kigen every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | ScanMaster | Kigen |
| --- | --- | --- |
| 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** | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 6 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Wuhan Starlink Network Technology Co., Ltd.](https://appshunter.io/developer/1624636161) | [Kusama Yoshiki](https://appshunter.io/developer/6783340205) |

## 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 |


### Kigen

[App page](https://appshunter.io/ios/app/kigen-expiry-date-tracker/id6804410878)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (unlimited, no ads) | $2.99 | one-time |


## Frequently asked questions

### Is ScanMaster free?

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

### Is Kigen free?

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

### Do ScanMaster or Kigen have ads?

Kigen shows ads; ScanMaster does not.

### Which is updated more often, ScanMaster or Kigen?

ScanMaster ships an update every 5 weeks, and Kigen every 2 months. Most recently, ScanMaster was updated on October 24, 2026 and Kigen on October 24, 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.*