DRS
DRS gives real-estate agents printed QR codes that turn a sign or a flyer into a lead. I built the whole product: the scan pages, visitor location, the agents' dashboards with clustered maps, and the lead manager. It ran in production for eight years.
One detail: Scan to lead
From a scanned code to the right agent.
Each sign carries a code tagged with its agent. A scan is geolocated, clusters on the map with every other visit, and lands as a lead on that agent's dashboard.