Very Cool
The UI is intuitive, elegant, and engaging. It’s not just for “techie” people, but walks you through the functions in clear, plain language. Also a great price considering how powerful it is and how much info it provides.
#195 in paid Utilities
🔧 Utilities
$2.99
About
Detects nearby Bluetooth activity, local network services, and magnetic clues to enhance privacy awareness in shared spaces. Offers an Apple Watch companion for collecting data without your iPhone.
✓Bluetooth activity detection
✓Local network service exploration
✓Magnetic clue detection
✓Apple Watch companion app
✓Signal strength readings
✓Baseline monitoring for changes
✓Session saving and export
Show original description
+1
What's New in Spectra by Arc Signal
1.2.0
October 28, 2026
Pin findings, add personal notes, and see what changed when you recheck a saved session. We’ve also added new app icons, expanded supported audio recognition, and refined saved results and navigation for a clearer experience.
MoreCharts
User reviews
FAQ
What is Spectra by Arc Signal?
Spectra by Arc Signal helps you become aware of your surroundings by detecting nearby Bluetooth activity, local network services, and magnetic clues. It's designed to give you a sense of privacy in spaces you share.
Does Spectra by Arc Signal have ads?
No, Spectra by Arc Signal is ad-free. The app description explicitly states there are no in-app ads, subscriptions, or in-app purchases.
How much does Spectra by Arc Signal cost?
Spectra by Arc Signal is a paid application. It is available for a one-time purchase price of $2.99.
What devices does Spectra by Arc Signal support?
Spectra by Arc Signal is supported on both iPhone and Apple Watch. The Apple Watch companion app allows for data collection without your iPhone nearby.
How often is Spectra by Arc Signal updated?
The application is built to continuously improve, with catalog and detection-engine improvements included in updates. The latest version is 1.1.0, last updated on October 21, 2026.
Can Spectra by Arc Signal detect cameras or microphones?
Spectra by Arc Signal's magnetic change detection cannot identify a camera or microphone, nor can it prove recording. A quiet reading does not rule out the presence of a device.
Is my data shared with Spectra by Arc Signal?
No, scan interpretation runs on your iPhone, and scans are not automatically sent to Arc Signal or an external AI service. Sharing your observations is your choice.
What is the age rating for Spectra by Arc Signal?
Spectra by Arc Signal has an age rating of 4+. This indicates it is suitable for a wide range of users.