Your complete medical profile —
one tap away.
Everything a first responder or caregiver needs, instantly accessible from a single card.
Get Your Knock ID CardThe process
No app. No login. No waiting.
Three seconds from tap to full medical profile.
Tap or Scan
Hold the card near a smartphone's NFC reader, or scan the QR code on the back.
Profile Opens
Your complete medical profile loads instantly in the phone's browser — no app required.
Right Information, Right Now
First responders and caregivers see exactly what they need to help you.
The technology
NFC Technology, Simply Explained
Near Field Communication (NFC) is the same technology behind contactless payments. When an NFC-enabled smartphone comes within a couple of inches of your Knock ID card, it reads your profile instantly — no pairing, no Bluetooth, no setup required.
Where to hold the card:
iPhone
Hold near the top of the device, close to the camera. Compatible with iPhone XR (2018) and newer.
Android
Hold near the center of the device. Most modern Android phones support NFC — check your settings to confirm.
Your profile
What's in Your Profile
Your Knock ID profile is built to hold everything that matters in an emergency — and everything that helps ongoing caregivers do their job well.
Medical Conditions
Chronic diagnoses, recent conditions, and relevant medical history.
Allergies
Drug, food, and environmental allergies — clearly listed for medical professionals.
Medications
Current medications with dosages and schedules, so nothing gets missed.
Emergency Contacts
The people who need to be reached immediately in a crisis.
Specialist Information
Details of treating physicians and specialists for continuity of care.
Insurance Information
Coverage details ready to go when you need to be checked in fast.
Document Storage
Upload prescriptions, diagnostic reports, and any other critical paperwork.
Photos & Videos
Add visual references — useful for tracking visible conditions or providing care instructions.
No NFC? No Problem.
Every Knock ID card includes a QR code on the back. Anyone with a smartphone camera can scan it to access the same complete medical profile — no NFC required. Whether it's an older device or a situation where NFC just doesn't work, you're always covered.
Always current
Your Profile Grows With You
Your Knock ID profile isn't frozen in time. Update it whenever something changes — a new medication, a new diagnosis, a new specialist. One update, instantly reflected everywhere.
Compatibility
Works on Any Device
Knock ID is designed to work on the widest possible range of devices — because emergencies don't wait for compatible hardware.
iPhone
NFC tap supported on iPhone XR (2018) and all newer models. QR scan works on any iPhone with a camera.
Android
NFC is available on most modern Android devices. Verify in your phone's settings. QR scan works on any Android camera.
Questions about compatibility? Contact our support team — we're happy to help.