Neurometer

Real-time departure pressure signals

See whether people are leaving an area — not whether a place is free.

Neurometer counts recent departures around you and shows them as a pressure reading. A high reading means many people left in the last few minutes. It does not show how many people are still there, and it does not tell you whether a place is free. Despite the name, it measures nothing about people's minds or health.

For example: a car park empties after a match and the reading rises. A busy shop where nobody is leaving yet stays low.

It works anywhere, with no setup. A reading appears once enough phones nearby contribute; until then the instrument shows "No Signal". That is normal in most places today.

How It Works

• Your phone turns its location into a cell ID, an area about 150 m across. Coordinates never leave the phone
• When you leave a place, a contributing phone sends one anonymous departure: the cell ID and the time
• A reading combines departures from your cell and the eight cells around it, roughly 450 m across
• An ambient status icon shows the last reading at a glance

What Neurometer Is Not

• Not a tracking or surveillance system
• Not an availability or occupancy indicator — departure pressure does not tell you if a place is free
• Not a navigation, recommendation, or prediction engine
• Not a safety system — it augments awareness, does not replace it

Data & Privacy

• No accounts or sign-up required
• No location history stored
• To show a reading, the app sends your current cell ID, even with contribution off
• No personal data collected or shared
• Signals are anonymous and ephemeral
• Read-only instrument — it shows pressure, not people