Hardware
Check in without a screen, a phone, or Wi-Fi.
The Block is a passive NFC wall-mount. Guests tap their phone on arrival. Circuit records the attendance. No app required on either side.
Replace the door list with a wall mount.
Today, an organiser stands at the door with a phone and checks guests in one at a time. The Block moves check-in to a fixed point in the room. Guests arrive and tap. The organiser is free to host.
BeforeAfterDevicePhone at the doorBlock on the wallWhoOrganiser checks inGuest taps inFlowOne at a timeSelf-serviceNeedsBattery + Wi-FiNo power. No network.
Phone at the door→Block on the wall
Battery + Wi-Fi→No power
Ticketing tells you who bought a ticket. Not who came back.
Every ticketing platform structures data around the promoter, not the venue. The Block gives you one layer — one device per room, every organiser, every format, one record.
Monday — FridayThe Yard
FormatGuestsReturnComedy Night34061%Supper Club4587%Film Screening18068%Open Mic12022%
Comedy Night61% return
Supper Club87% return
Open Mic22% return
Three-second check-in.
- 1.Mount the Block — One device per room. Screws into any wall. No power cable.
- 2.Guest taps their phone — Any phone with NFC. No app to download.
- 3.Circuit records the check-in — Attendance, return status, and recognition update instantly.
Backlight #7Check-in
Search guests...32 / 45
Priya Nair5✓ ATTENDEDJames Okafor3RSVPLena Kovac1RSVP
Priya Nair✓ Attended
James OkaforRSVP
Lena KovacRSVP
Built to disappear.
No battery. No Wi-Fi. No app. The Block is an antenna — the guest's phone does the network work. Every tap is unique and tamper-proof. Fits any wall. Works with iOS 13+ and Android 5+.
PowerPassive NFC — no batteryNetworkNone — phone connectsSecurityEvery tap unique — tamper-proofMountingWall-mount — one per roomPhonesiOS 13+ / Android 5+Lifespan50-year data retention
PowerPassive NFC
NetworkNone
SecurityTamper-proof
PhonesiOS 13+ / Android 5+