At this time we have only two authentication methods:

• Email (you will receive a code to your address)
• Apple ID
• Google Authentication

We are planning to add more options a bit later on, but in the meantime, on iOS, you can use Touch/Face ID to lock the whole app completely.

To do so, go to:

• Preferences -> Security -> Lock Craft with Touch/Face ID.

That's great! What about a password to protect notes?

This is also on our roadmap.