# FourScan - Spy Detector — 4 Powers Protect Your Privacy

> 4 Powers Protect Your Privacy (iPhone/iPad app by satoshi amasaki.)

- Source: https://appshunter.io/ios/app/fourscan-spy-detector/id6761895107 (this page in markdown: same URL + `.md`)
- Developer: [satoshi amasaki](https://appshunter.io/developer/1891268722)
- Category: Utilities, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 3 MB
- Released: 2026-04-15
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/fourscan-spy-detector/id6761895107/reviews.md

## What is FourScan?

Protect your privacy with 4 scanning technologies.

Worried about hidden cameras or listening devices in hotels, Airbnbs, or rental spaces? FourScan runs 4 detection scans sequentially with a single tap.

[4 Detection Powers]
1. Magnetic Scan - Detects magnetic field anomalies from electronic devices
2. Infrared Scan - Uses front camera to detect IR LEDs from night vision cameras
3. Wi-Fi Scan - Discovers suspicious devices on the local network
4. Bluetooth Scan - Searches and analyzes nearby BLE devices

Note: Basic checking tool, not a substitute for professional investigation.


## Version history (last 2 releases)

### 1.2 — 2026-04-25

Added marketing URL and improved ad delivery stability.

### 1.0 — 2026-04-15

No release notes.

## More apps by satoshi amasaki

- [CompactCam](https://appshunter.io/ios/app/compactcam/id6761750166)
- [Real Soroban](https://appshunter.io/ios/app/real-soroban/id6761827077)
- [ズツウォッチ](https://appshunter.io/ios/app/id6761879273)
- [Enochian Keys](https://appshunter.io/ios/app/enochian-keys/id6762251166)
- [BodyReader](https://appshunter.io/ios/app/bodyreader/id6762313745)

All apps by satoshi amasaki: https://appshunter.io/developer/1891268722

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-16.*