One list, one client
Share it with them and that is all they can see.
Sign in with Google or Apple. There is no form before the first list.
The same shared list, doing very different jobs for very different people.
Clients want visibility. They do not want to see your other clients.
Share it with them and that is all they can see.
Invoicing, chasing, the admin nobody is paying for. In your own list.
The revision, the file they sent, the thing they changed their mind about.
Your home screen orders every client's work together.