Opening soon. Sign-up is open now, and payments open on launch day.
ohmystamp

Reward for the rest of us

Customers collect stamps with one tap on their phone. Built for small shops, with no POS, no app and no paper cards.

A stamp at the counter

The shop taps the stamp to the customer's phone, and the stamp book gains one.

A café barista stamping a customer's phone at the counter; the phone shows a stamp book with 4 of 8 stamps

How it works

  1. A shop's wooden stamp tapping a customer's phone

    1

    Tap

    At checkout, the shop taps its stamp on the customer’s phone.

    Shop
    Uses a wooden stamp with an NFC chip inside. Nothing to type at the counter.
    Customer
    Gets one stamp on that shop’s card. No paper card, no app to install.
  2. A loyalty card on a phone with stamps collected

    2

    Collect

    Stamps add up on the phone, shop by shop.

    Shop
    Runs its own card. Every tap shows it right away.
    Customer
    Every tap adds a stamp to that shop’s card on the phone. No app, no sign-up.
  3. A full stamp card turning into a reward

    3

    Reward

    A full card turns into a reward, automatically.

    Shop
    Approves the Use at the counter. A fresh card begins.
    Customer
    Gets a text with a link. Shows the Use button at the counter next visit.

Shops set up in minutes and the stamp ships to the door. Customers never download anything.

How ohmystamp Came to Be

"A Stamp Built by a Shop Owner Who Was Thinking of Closing"

A dry cleaner of 25 years in Burlington, Canada built ohmystamp to save a shop on the brink of closing. Read the story

Woohyee Cho has run a dry cleaner in Burlington, Canada for 25 years. ohmystamp was not born from a grand business plan — it was born from trying to save a shop on the brink of closing.

He launched in his own shop on October 1, 2025. A year in, new customers who joined at their first checkout came back at roughly twice the rate of those who didn't. See the full data

When a few customers said they'd like to use it in their own businesses, ohmystamp became a service for any shop.