Visit a Callback partner restaurant and look for the Callback tag. Hold your phone’s NFC reader over the tag to get a stamp.

As you collect more stamps, rewards will become available and can be redeemed when you tap in at the restaurant. You can track progress towards rewards by clicking on the stamps you’ve collected and scrolling to the rewards section.

We’re starting with restaurants in Japan. See our partner restaurants here If you’d like to see us in a different country, please let us know!

Check out our Callback status levels page for the latest details on rewards and benefits available at each level.

Add your friends in the Callback app and tap in within 10 minutes of each other to earn a 🤙point bonus. The bonus will be automatically added to your account.

Stamps are non-transferable NFTs on the Polygon blockchain, exclusively owned and controlled by you. Callback creates an on-chain profile reflecting your loyalty through the restaurants you check into. Due to the nature of blockchain, the stamps you earn are publicly visible. However, personal information is not recorded on the blockchain and is entirely opt-in. We believe that democratizing check-in data unlocks opportunities to create innovative tools and impactful experiences that empower restaurants.

Please check out our become a partners page.