Same security. Different setup.

Which option is right for you?

Both options use the same FIDO2 cryptographic standard — bank-grade identity verification at your door. The difference is how your household receives the signal.

Option 1 · General Population
VerifiedKnock passive NTAG424 DNA NFC sticker

Passive NFC Sticker

Best for tech-savvy residents who have a smartphone. Set up once, works forever — no power, no maintenance.

Best for:

  • ✓ Homeowners with smartphones
  • ✓ Renters who can't install hardware
  • ✓ Low-cost, minimal-setup deployments
Option 2 · Seniors & No-Phone Households
VerifiedAmbient dedicated NFC reader

VerifiedAmbient™ Dedicated Reader

Best for seniors, elder care facilities, and households without smartphones. Wall-mounted, always ready, no app required.

Best for:

  • ✓ Seniors living alone
  • ✓ Elder care and assisted living facilities
  • ✓ Housing authorities and public housing

Side-by-side comparison

Feature
NFC Sticker
Dedicated Reader
Requires smartphone
App needed for setup only
No phone ever
Requires Wi-Fi or internet
Works offline after setup
Fully offline
Requires power source
Completely passive
Wired or battery
One-time setup by resident
Via VerifiedKnock app
Wall-mount installation
Works for seniors without phones
Phone required
Ideal for seniors
Ambient light signal (green/red)
App notification only
Built-in LED signal
FIDO2 cryptographic verification
Same standard
Same standard
Tamper-evident hardware
Sticker can be removed
Tamper-resistant enclosure
Family remote notification
Via app
Via app

Ready to get started?

Contact us to find the right deployment for your agency, facility, or household.