Offline by design

Your private text doesn’t need someone else’s server

Useful doesn’t have to mean online. MI8OS keeps your encrypted copy on a card and works without a connection.

Keep your encrypted copy on a card

€49,00 for 3 cards. One-time purchase, no account.

Side by side

A cloud service or a MI8OS Card?

A cloud service MI8OS
Where your text lives Someone else’s server Your cards
Works offline Usually not Create, write and open without a connection
If the company closes Your data goes with it The cards don’t depend on MI8OS servers
Account Required None
A woman in a café holding up her MI8OS Card

Online is a choice, not a requirement

For everyday notes, the cloud is handy. For the text you’d least like to see in a breach notice, keeping it off servers is a reasonable choice.

How it works

Write it once. Open it with a tap.

  1. 01

    Add your secrets

    Passwords, recovery phrases and private notes.

  2. 02

    Choose a Vault Password

    Only you know it. MI8OS never keeps a copy.

  3. 03

    Encrypted on your phone

    Before anything reaches the card.

  4. 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

€49,00

In stock

Ships from Switzerland Europe: 3–7 business days Worldwide: 7–14 business days

30-day returns money back guarantee Secure checkout

  • End-to-end encrypted
  • No subscription
  • One-time purchase
Your legal guarantee rights

FAQ

Before you buy

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.

Keep your secrets
where you can hold them.

Keep your encrypted copy on a card €49,00