yce

Hi, I have the same issue, I've tried to contact support and got the same answer. I told them at least they could offer a redeem code to restore the purchase if I bought the previous version, but no answer since. It would be great if I won't have to buy the app again and again when there is a major upgrade, this is ridiculus. I love using this application though, but I will have to look alternatives if this cannot be solved... Update: Contacted support again, and they have provided a redeem code.

Yes if the service is on an https protocol then there shouldn't any problem sending the master password to the server. But it would be also possible to add extra security by encrypting the master password with a public key on the client side (javascript) and decrypting it with a private key on the server. By doing so an attacker couldn't gain access to the master password even if it's not on a secure connection.

The browser doesn't have to support it, ownCloud/nextCloud is based on php, and it is possible to include sqlchiper in php as described here: https://www.zetetic.net/sqlcipher/sqlcipher-for-php/