It can work quite well. I use Strongbox, a standalone database password manager. My wife and I share a database in iCloud. The database supports concurrent ac

It can work quite well. I use Strongbox, a standalone database password manager. My wife and I share a database in iCloud. The database supports concurrent access/syncing and works quite well to share passwords between us. I trust in crypto to keep me safe. My key is derived from a pass phrase + HMAC-SHA1 digest of a shared secret stored in write only memory (Yubikey, Secure Enclave). My wife’s phone has the same. Our shared mac also has the same. I could probably host my database on a public AWS bucket and still be safe (120 bits of entropy in the password).