The card that needs no battery

What if your backup had no battery to die?

A MI8OS Card has no battery, no cable and nothing to charge. Your phone powers it for the moment you hold it close.

Meet the card that needs no battery

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

A woman in a café holding up her MI8OS Card

Backups fail at the worst moment

Old phones run flat in a drawer, USB sticks get lost, and devices need updates. The day you need your backup is the day you find out.

A MI8OS Card simply waits. Hold it to a compatible NFC phone, open the app, enter your Vault Password, and your vault is there.

Nothing to charge, nothing to update

  • No battery, nothing to chargeYour phone powers the card when you hold it close.

  • New phone, same vaultInstall MI8OS on another compatible phone, scan a card and enter your Vault Password.

  • Three copies, one vaultCarry one, keep one at home and store one somewhere else.

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

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.

Meet the card that needs no battery €49,00