NearLens Free on the App Store

Privacy by architecture: nothing leaves your phone.

A free iOS app that tells you when camera-equipped smart glasses are broadcasting nearby. Built in Ottawa, Ontario.

Made in Canada

The ability to move through public spaces unrecorded is quietly eroding.

Camera-capable glasses are getting smaller, lighter, and harder to spot. The Electronic Frontier Foundation has issued public warnings about the category. In 2024, 404 Media and The New York Times documented how Harvard students paired commercially available Ray-Ban Meta glasses with facial-recognition tools to identify strangers in real-world settings without their knowledge.

Knowing a device is broadcasting nearby lets you decide what to do about your own space. The app reports presence, not proof: there is no map, no account, and no way to report anyone.


Four steps, entirely on your phone.

  1. Passive Bluetooth scan
    Listens for Bluetooth Low Energy advertisements from devices nearby, with no pairing, no connection, and no interaction with the device.
  2. Signature matching
    Matches manufacturer identifiers and device-name patterns against a database of known camera-capable smart glasses brands.
  3. Discreet alert
    A confidence-rated notification tells you what was detected and how close. You choose what to do with that information.
  4. Nothing leaves the phone
    The log stays in local storage. Export it through the iOS share sheet or wipe it with one tap. No server ever sees it.

Zero collection.

This app does not collect, transmit, or share any information. Detection logs are stored only on your device and can be deleted at any time.


What NearLens cannot guarantee.

Other products from the same manufacturers (VR headsets, earbuds, wireless speakers) may trigger alerts. NearLens detects Bluetooth activity consistent with smart glasses profiles; it does not guarantee that a detected device is specifically a camera-capable pair of glasses. Use your judgement.


Built to meet global privacy standards.

General Data Protection Regulation - EU

BLE identifiers processed exclusively on-device, never transmitted, deletion available at any time. Satisfies data minimisation (Art. 5(1)(c)), storage limitation (Art. 5(1)(e)), and right to erasure (Art. 17).

UK General Data Protection Regulation

Same legal framework as EU GDPR, applied under the UK Data Protection Act 2018. BLE identifiers processed on-device only, never transmitted. Satisfies UK GDPR Arts. 5(1)(c), 5(1)(e), and 17 (right to erasure) via the in-app log clearing function.

EU Artificial Intelligence Act

On-device classifier produces an informational confidence score shown to the user. No biometric identification, no automated decision with legal effect. Minimal risk under the Act's risk hierarchy.

California Consumer Privacy Act / California Privacy Rights Act

No personal information collected beyond local device storage. Nothing sold or shared with any third party. Right to deletion satisfied by the in-app log clearing function.

Personal Information Protection and Electronic Documents Act - Canada

No personal information collected, used, or disclosed beyond local device storage. Purpose is identified and limited to user-initiated detection. No third-party disclosure. Right to deletion met by the in-app log clearing function.

Lei Geral de Proteção de Dados - Brazil

Satisfies purpose limitation, adequacy, and necessity under Article 6. Processing on-device at the user's explicit request. Right to deletion under Article 18 met by the in-app log function.

Personal Data Protection Act - Singapore / Thailand

No personal data transferred outside the device. Collection is purpose-limited to the user's explicit detection request. Consent obtained at first launch. Right to withdraw consent and right to deletion both met by the in-app log clearing function.

Protection of Personal Information Act - South Africa

Processing is on-device and purpose-specific (user-initiated scan only). No special personal information or biometric data collected. Data subject's right to erasure under s.24 met by the in-app log clearing function.

Australian Privacy Principles - Australia

No personal information collected or disclosed to third parties. On-device storage only, satisfying APP 3 (collection), APP 6 (use and disclosure), and APP 11 (security) by design. Deletion requests fulfilled by the in-app log clearing function.

Act on Protection of Personal Information - Japan

No personal information acquired, used, or provided to third parties. On-device processing only, exempt from third-party provision rules. Right to request deletion under Art. 34 met by the in-app log clearing function.


The people behind NearLens.

Product Designer & Builder
Discovery Research
Emanuel Cardoso & Mariana Fernandes
IADE - Universidade Europeia - Pós-graduação em AI Aplicado ao Design