1-) Kypass for phone. 2-) Sftp = not cloud, dedicated non-public server which you can also setup in your home environment such as a nas drive which only and on

1-) Kypass for phone. 2-) Sftp = not cloud, dedicated non-public server which you can also setup in your home environment such as a nas drive which only and only you have access to. 3-) I am convinced it is the safest, because no 3rd party is involved in my perfectly synced password system.