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005 / iPhone Investigation App
Quis Pulsat
Something's knocking. Dare to answer?
Quis Pulsat is an investigation app for iPhone. Set the phone down in a room that feels off. It learns the room, then watches the sensors already on the device. When a reading leaves that baseline, it saves the moment as its own lead.
A magnetic field that jumps. A step in air pressure. A sound in a quiet room. Motion while the phone should be still. A hit is an unusual physical reading — not proof that something supernatural caused it. The app never folds those readings into one score.
How a session works
- Name the place and start a session.
- The phone learns the room's baseline.
- Each detector works on its own. Two sensors crossing a threshold at the same time stay two leads.
- Every hit keeps the time, the sensor, how far it moved, the threshold it crossed, and a short sample of what the phone recorded.
What you can watch
- Anomalies with camera depth and LiDAR on supported iPhones — walls drawn until you move.
- Nearby devices: Bluetooth, NFC tag on start, and Ultra Wideband distance in a session.
- Separate gauges for magnetometer, barometer, microphone, motion, compass, and location.
- A sensitivity dial from guarded to keen, and a reopenable log with samples around each hit.
Inside Quis Pulsat
The session runs in the foreground, with the phone in the room.
Quis Pulsat measures what the hardware can measure. You decide what it meant.
Quis Pulsat privacy policy
