Firefox Android, I get an option to share my email address and no information about what this is or who would be using that information.
No thanks.
No thanks.
If you chose the email option instead of “sign in with Google”, the server will probably use that email address to send you a login link. This is pretty standard for any web service, even blogs, where users can create accounts.
I only see a title, a sign up link, and some celebrity photos.
It's a site where you can create voice clones of someone and talk to them.
You can tap on the celebrities to chat with them as a test
Given that - presumably - you are going to be asked for content such as voice recordings to create the clone this is a valid concern.