Pretlow Stevenson

Researching AI. Building for privacy.

About

Exploring how AI models reason together—and building practical tools for everyday privacy and security. Founder of K Means AI, an AI research company, and Arc Signal, creator of Spectra for iPhone.

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Download Spectra for iPhone

Arc Signal

K Means AI

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Maker History

Spectra by Arc SignalOn-device Bluetooth, local network & magnetic-field analysis
Oct 2026

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Joined Product HuntOctober 28th, 2026

Forums

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7h ago

Spectra by Arc Signal - On-device Bluetooth, local network & magnetic-field analysis

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.