Stadtstack / Loyalty
Sepolia preview · Test tokens and points only. No real-money payments. Sponsorship depends on this host’s transaction service and your account admission.
Collecting and spending points are paused. You can still open your account. Pilot status

Collect points

Choose a participating merchant and show your membership card.

Start with a passkey

Use your device’s passkey to protect your points. No password to remember.

Already joined? Restore a backup

Available Programs

Loading programs from Sepolia...

How it works

1

Create or unlock your account with a passkey

2

Choose a program and click "Show My ID"

3

Show your QR to the merchant—they scan it

✓

Start earning encrypted points!

Privacy Preserved

Your proof keeps the identity secret private. Wallets and membership commitments remain public, and merchants know the purchases they process.