Primarily a wallet.
However, the mobile app (coming in next couple of weeks) is a Nostr-Connect (NIP-46) client as well and is used for publishing and encrypting/decrypting.
Discussion
I am just wondering if we can apply miniscript to socially recover the person's main Nostr key instead. So, instead of saving it on Password Managers, we can save it in Nostr itself using friends.
We can do a new NIP for this, where apps would display a notification when a friend is trying to recover their key.