Hi PH 👋 A year ago, smart glasses were a novelty. In 2025 Meta and EssilorLuxottica sold 7 million pairs, and production is scaling toward 20 million a year. That happened quietly, and it broke something we never had to think about: you used to be able to see the camera. Someone raised a phone and you knew — you could step aside, or object. Consent worked because capture was visible. Now the camera is a pair of Wayfarers, and the only tell is a small LED that a sticker defeats. Counterlens is the small, honest answer: camera glasses, action cams and AI recorder pendants all leak Bluetooth identity, and your phone can hear it. The app maps what's near you and grades how sure it is. What I think makes it different from the ~10 apps that appeared in this category this year: 🔍 Evidence, not vibes. Every detection opens to the raw radio data — advertised name, manufacturer ID verified against the official Bluetooth SIG registry, services, and the exact rule that matched. You can audit every alert. 🥽 A Quest is not glasses. Meta's VR headsets share manufacturer IDs with their glasses, so naive scanners scream "smart glasses nearby" at a headset asleep in a drawer. Reviewers caught competitors doing exactly this. Counterlens classifies Quest hardware as VR and never alarms on it. 📹 It hears more than glasses. GoPro/DJI/Insta360 pocket cams — including a live "active capture likely" readout decoded from GoPro's published status bits — plus always-on AI recorder pendants like Plaud and Limitless. 🤝 It tells you when it can't help. This is the part I care most about: worn glasses already paired to their owner's phone often stop broadcasting entirely. A quiet radar is not proof you're unobserved, and the app says so in onboarding rather than selling false comfort. Detection means "capture-capable device nearby" — never "you are being recorded." 🔒 Zero data collected. No account, no analytics, no ads, no location permission. The app makes no network calls at all — there is no server. Your history never leaves your phone. A privacy tool that phones home would be a joke. Also in there: a 60-second guided Room Sweep that ends in a shareable report (good for rentals), Sentry Mode for turning a spare device into a doorway monitor for studios/clinics/gyms, and a hot/cold Locate mode with haptics. Free, no subscription, iOS 17+. Happy to answer anything — especially skeptical questions about what BLE detection genuinely can and can't do. That conversation is more interesting than the marketing.

Counterlens

The honest radar for smart glasses and hidden cameras

The honest radar for smart glasses and hidden cameras