Why I built this.

Almost every independent shop I walk into has a stamp card. Usually a stack of them behind the counter, next to the till, slowly going soft at the corners.

They work, in the sense that people like them. What they do badly is survive. A customer four stamps into a card who loses it does not start again — they just stop collecting, and the shop never finds out it happened. The cost is not the piece of card. It is a regular who quietly stopped coming.

The obvious answer is an app, and shop owners have tried. The trouble is that nobody downloads an app for one bakery. So the card either stays paper, or it becomes something a customer agreed to once at the till and never opened again.

OneStamp is the version I thought made sense. The card goes into the phone wallet people already use, next to their bank cards — no app, no sign-up, about four seconds at the counter. And it is one card shared across every shop that uses it, so a customer collecting at a café already has it when they walk into the barber next door. That shop simply appears on the card they are already carrying.

That last part is the whole idea, and it is the reason a shop sees only its own stamps — never a customer's name, never their number, never where else they go. Without that, no two competing businesses would ever agree to share a card.

I am Sahil. I live in Charlottetown, I built this myself, and I run it myself. It is live on the Island with real shops and real customers, and if you are here too I am happy to come by and set it up with you. That is not a sales tactic — it is a small island and it takes fifteen minutes.