Doppel is a personal AI phone assistant. It answers phone calls for its one owner, talks with the people who call, and passes their messages on to him.
The owner can also call Doppel himself for a short briefing. If he asks, Doppel can read his latest email to him, save a draft, or send an email for him, but only after it reads the email back and he says yes.
Doppel is a private app for its owner only. It is not a public service, and nobody else can sign up for it or use it.
Read the privacy policy to see what Doppel does with Google data.