Stamp Rally Maker

Why we built it

Stamp rallies are a long-running format in Japan: visitors walk a route, collect a stamp at each stop, and trade a full card for a prize. Shopping streets, tourism boards and schools all run them. On paper, though, the organiser pays for it in labour — printing cards, setting up stamp desks, staffing each stop, tallying the results.

Handing out a dedicated app does not fix that; it just moves the burden onto participants. Few people will install an app for an event that lasts an afternoon.

Avoiding both means one thing: the organiser builds it in a browser, and the participant joins in a browser. That was the starting point.

What it does

• Three ways to collect a stamp. Scan a QR code posted at the stop, check in on location via GPS, or solve a puzzle and enter the keyword. Organisers pick whichever suits the event.
• Print material, generated for you. The QR codes come out ready to post on a wall. The organiser never has to open a design tool.
• AI-generated stamp artwork. Organisers without a designer still get stamps that look the part.
• A directory of live rallies. Participants can find events running near them from within the service.
• The first rally is free. You can run a real event before deciding to pay.

What this means for your project

We run this service end to end ourselves — concept, build, and the operation that follows. If you are building something at the "ship it small and grow it in production" scale, we can take it on the same way, starting from the first idea.