Some things deserve to be kept — not scrolled past.
Seal is the companion app for Grain Patch, a full-grain leather NFC tag
(72×22 mm) made by Kyoto Makotoya. Write something that matters into the
leather, and anyone who taps it with a phone will find it there.
WHAT YOU CAN SEAL
• Contact — your name, phone, and email, opened as a contact card
• Link — one URL, where you exist online
• Words — a line worth carrying, with 68 words from around the world
to begin from (Words Worth Carrying)
• Location — a place and why it matters, on its own quiet page
• Leave Blank — not deciding yet is also a choice
HOW IT WORKS
Write in the app, hold your phone to the patch, and it is sealed.
Reading needs no app — a tap opens it on NFC-ready phones.
PRIVACY, BY DESIGN
• No account. No sign-in.
• Contacts and messages are encrypted on your device (AES-256-GCM).
The key lives only in the URL on your tag — it is never sent to a server.
• Locations are prepared entirely on your device. Nothing is stored
on a server.
• What is sealed belongs to the one who carries it.
THE OBJECT
Grain Patch is full-grain leather over an NTAG213 chip. It ages as
leather does. And when you are certain, a patch can be locked —
permanently.
Write. Tap. Remember.