Your users sign in with WhatsApp. No passwords. No forms.
A login button any website can embed. Your visitor scans, says "hi", types a code — and they're in. They start the chat, so it's spam-proof by design.
A QR code appears on the website
WhatsApp opens with the message pre-typed — just send it
A one-time code arrives in the chat
That's the whole flow. Ten seconds, for real.