Bacterial STIs are at record highs across Europe.

How it works.

1. 1
   Generate Generate your personal QR code in the app — no card needed.
   Your QR code

   

   Unique token created each time
2. 1
   Pair Tap the reader with your wristband, then the other person taps theirs right after. A blinking light confirms you're connected.
   
3. 2
   Check out Tap your wristband on the reader on your way out, then enter the code it shows into the app.
   
4. 1
   Tear Split a card in half, like a cloakroom stub — one side each.
   Theirs

   Yours
5. 2
   Keep Hang onto your half.
   Yours
6. 3
   Scan Scan it in the app, whenever you're ready. Show your QR to the other person — they scan it with their phone camera.
   Scan the code

   

   Only a hash of the card leaves this phone.
7. 4
   Connected Connecting shares nothing on its own — and nothing is ever sent unless you tap to send it. Your halves match up once you've both scanned. Once the other person scans, the connection is established. Your wristband pairing shows up in the app once you've both checked out.
   It's a match! 💜 You're now connected.
8. 5
   Notified If either of you tests positive later, one tap tells the other — anonymously, no name or identifying info exchanged.
   AfterCare now Possible exposure No names. Just the alert.
9. 6
   Treated Get treated sooner, but only when advised by healthcare professionals.
   
   Early detection means less spread — and a healthier scene for everyone.

Take care with AfterCare 💜

• Privacy first No traceable data
• Anonymous No names, emails, or identifying info
• Free Pick up a card pair at a venue
• Open source Anyone can read the code