Write it now, choose access later
A message for someone you love, opened when you decide
That message doesn’t have to sit in a shared inbox waiting to be found. Write it in MI8OS, put it on a card, and share the Vault Password when the time is right.
Write the message now€49,00 for 3 cards. One-time purchase, no account.
Use cases
What would you keep on yours?
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A message for laterWritten now, readable once you share the Vault Password.
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Directions for someone you trustWhere important accounts and documents are. The documents stay where they are.
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Private notesThe ones that don’t belong in your camera roll.
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Recovery codesThe backup codes your accounts gave you once.

Some words are for later
How it works
Write it once. Open it with a tap.
- 01
Add your secrets
Passwords, recovery phrases and private notes.
- 02
Choose a Vault Password
Only you know it. MI8OS never keeps a copy.
- 03
Encrypted on your phone
Before anything reaches the card.
- 04
Tap your card
Hold it to your phone and the vault is saved.
Who can open it
A found card is not enough
- Your MI8OS Card
- The MI8OS app on an NFC phone
- Your Vault Password
Opening the vault takes all three. Nobody can recover a forgotten Vault Password, not even MI8OS.
MI8OS Card gen 2
3-card set
In stock
FAQ
Before you buy
What does the other person need?
The card, the MI8OS app on a compatible NFC phone and the Vault Password, which you share separately.
Someone finds a card I lost.
They have an unlabelled card containing encrypted data. There is nothing on it that identifies you or the vault.
I lose my phone.
Install MI8OS on another compatible phone, tap any card and enter the vault password to restore access.
I forget my vault password.
The vault cannot be reset or recovered. There is no reset option, recovery code or hidden way around the password.
MI8OS as a company disappears.
Your cards do not depend on an account or MI8OS server to hold their data.
Does the card need charging?
No. It has no battery and is powered by your phone during a tap.
Which phones work?
An iPhone or Android phone with the MI8OS app and a working contactless reader.