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Spectra by Arc Signal

On-device Bluetooth, local network & magnetic-field analysis

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Read the full description

What’s sharing your space? Spectra puts Bluetooth scanning, local-network discovery, and magnetic-field analysis on your iPhone. Explore nearby devices, review supported camera-related services on the network you’ve joined, and use close-range magnetic readings to guide a physical check for concealed electronics. At home or halfway around the world, understand more about the technology around you. Scan interpretation runs on your iPhone. No account. No subscription.

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PH · launched Oct 28, 2026 · 2 upvotes (top 23%)

Similar launches

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Could you build this?

Partial The Bluetooth and local-network discovery parts are buildable on iOS with AI help, but reliable magnetic-field analysis for concealed-camera detection needs sensor calibration expertise and a validated detection method, and iOS platform restrictions limit what is possible.

What it would actually take: The app would use CoreBluetooth, Bonjour/local-network APIs and the iPhone magnetometer, with a database of device fingerprints and camera-service signatures. The hard part is the magnetic-field analysis, which needs sensor-physics expertise, calibration and testing against real hidden devices to avoid false positives. Apple's privacy restrictions on Bluetooth and local-network scanning also constrain what the app can actually detect.

Competitors

Other products that read as similar to this one : 153 launches clear the similarity bar, closest 8 shown.

Attention rank: #24 of 154 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 345 days after the earliest competitor.

Other launches for this product