Mobile Device

You can use your mobile device to securely store shares of your vault, which are later used to sign transactions. These shares are protected within the Secure Enclave and safeguarded by your device’s built-in security features. For enhanced protection, we recommend enabling biometric authentication where available.

First time setup

The app is available for download directly from the Apple App Store or Google Play.

After logging in you will be prompted to register the device as a new signer. The app will automatically assign a name to the signer, which can be changed later in your user profile.

When registering, you can choose between two security options:

• Passphrase (recommended) - Provides stronger security and better protection for your account
• PIN code - A simpler option but less secure than a passphrase

Additionally, you can configure authentication preferences and enable biometrics authentication for faster access.

Once the signer secret phrase or PIN code has been confirmed, your signer registration is complete and it is ready to be added as a signing party on a vault.

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Why is the 24-word recovery backup required?

The 24 words are used to encrypt the secret shares (required to sign transactions) secured locally on your iOS device when you export them.

If you lose your device and can no longer complete a transaction you will need to retrieve your encrypted shares backup file and use the 24 words to decrypt them in order to not lose access to your assets.

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What is a passphrase and is this different to a password?

When registering a device you will be prompted to create a strong passphrase, along with your 24-words. The passphrase acts as an encryption key and is separate to the login password for your account. The passphrase is specific to your device, therefore if you have multiple devices registered for one user each will require a unique passphrase.

Please note: the passphrase can not be recovered or changed if lost so it is important to keep it in a safe place.

Automatic backup syncing

For iOS users, we strongly recommend enabling iCloud backups. This allows your vault shares to be securely synced to your personal iCloud storage. The shares are encrypted using your secret (PIN, password, or 24-word recovery phrase), which is required to restore access.

Once synced, your encrypted shares will be accessible on any iOS device linked to your iCloud account, provided the secret is entered correctly.

Both Android and iOS also support Google Drive syncing. To enable this on Android, ensure Google Drive is active and accessible on your device.

 Disaster Recovery

You can configure Disaster Recovery in the following scenarios:

• When joining a vault: Whether it's a new or existing vault, you'll be prompted to set up Disaster Recovery. You can choose to skip this step initially.
• After receiving funds: If a vault you are part of receives funds and you haven’t set up Disaster Recovery, the app will prompt you to complete it the next time it’s opened.

Disaster Recovery involves securely saving a signer-specific, randomly generated 24-word secret phrase. This phrase is essential for recovering your signer key in case of device loss or other emergencies.

For more details, refer to the Disaster Recovery section in the app.