Loading..If you see a website offering a free test, look for these three red flags:
| Feature | Reality | User Experience | | :--- | :--- | :--- | | | Fake. Uses touchscreen conductivity to register a touch. | Visual animation (blueprints, lasers). | | Heart Rate Detection | Extremely Limited. Requires camera flash (photoplethysmography), not the touchscreen. | Some apps use the camera flash to detect pulse while you hold the fingerprint area. | | Results | Pre-determined or Random. | Users can often set the result in settings or via secret buttons. |
If you see a website offering a free test, look for these three red flags:
| Feature | Reality | User Experience | | :--- | :--- | :--- | | | Fake. Uses touchscreen conductivity to register a touch. | Visual animation (blueprints, lasers). | | Heart Rate Detection | Extremely Limited. Requires camera flash (photoplethysmography), not the touchscreen. | Some apps use the camera flash to detect pulse while you hold the fingerprint area. | | Results | Pre-determined or Random. | Users can often set the result in settings or via secret buttons. |