Sending your client their link
Every client has one page. Everything you send them, the contract, the shoot details, the cut to review, the invoice, lands on it. They do not need an account.

Open Clients, choose the client, and press Copy link. The link is copied and the message that appears shows their passcode. Send both to the client however you normally talk to them.
The first time you send anything to a client, Cinella asks you to confirm your email address. After that it does not ask again.
If you change the shoot, the contract or the invoice later, the same link shows the new version. There is nothing to resend.
Still stuck? Email hello@cinella.app and Harry will answer.