Lens & Magnet Tools

Lens & Magnet Tools provides on-device utilities that can help you perform manual privacy checks in unfamiliar spaces. It includes a Reflection Helper for observing potential lens-like highlights and a Magnetic Field Meter for viewing nearby magnetic field changes. Everything runs on your iPhone—no accounts, no tracking, and no data leaves your device. Why use it? When you’re in a hotel, rental, changing room, meeting room, or office, these tools can support your manual inspection. The app does not detect or identify hidden devices; it simply helps you notice signals that may merit a closer look. Two On-Device Tools 1) Reflection Helper (Camera/Lens Aid) Uses light to help you observe specular highlights that might resemble small lenses. Adjustable sensitivity to reduce false positives. Step-by-step guidance on where and how to look. Works entirely on-device. 2) Magnetic Field Meter (Magnetometer-Based) Live readout and graph of magnetic field variations near objects. Optional haptic/sound alerts when a user-defined threshold is exceeded. Useful for inspecting mirrors, smoke detectors, alarm clocks, picture frames, vents, and similar housings. Uses your iPhone’s built-in sensors; no extra hardware. Key Features: Reflection Helper for possible lens-like highlights Magnetic Field Meter with real-time graph, peak hold, and threshold alerts Quick Room Sweep checklist to encourage safer habits Practical tips: where to look, how to angle light, recommended distances 100% on-device; no sign-up, no cloud, no background data collection How to Use: Calibrate (magnetometer): Move your iPhone in a small figure-8 to improve readings. Reflection Helper: Dim the lights slightly, then scan surfaces slowly. Look for pinpoint, persistent highlights that may deserve closer inspection. Magnetic Field Meter: Hold the device ~2–5 cm from objects (mirrors, adapters, clocks, vents). Rising values can indicate magnetic materials inside. Verify & Inspect: If something stands out, perform a careful manual check. Use both tools together for stronger confidence. Where to Check: Hotels & rentals (bedroom, bathroom, living areas) Meeting rooms & offices (projectors, clocks, smoke detectors) Changing rooms & public restrooms (mirrors, hooks, shelves) Rental cars & shared workspaces (dash areas, vents) Privacy First: 100% on-device operation No personal data collected, sold, or shared Important Notes: This app assists with manual checks; it does not detect or identify hidden devices. No detection is guaranteed. Results depend on lighting, distance, materials, and ambient interference. The Magnetic Field Meter reflects field variations; many ordinary items can influence readings. Information about the auto-renewal of subscription: –Subscription unlocks access to all the app’s features –Subscription with trial will be automatically renewed to a paid subscription -Account will be charged for renewal within 24 hours prior to the end of the current period. The cost depends on the selected plan -Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period -Payment will be charged by Apple at confirmation of purchase Privacy Policy: https://lens-and-magnet.web.app/privacy Terms: https://lens-and-magnet.web.app/terms