FourScan - Spy Detector
4 Powers Protect Your Privacy
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added marketing URL and improved ad delivery stability.
The developer, satoshi amasaki, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- satoshi amasaki
- Size
- 3.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2026 satoshi amasaki