Doppel - Chat Era is an app available on Apple Store that allows users to engage in stimulating conversations with iconic personalities, historical figures, and legendary artists. With Doppel, users can have funny dialogues, discussions, and engaging conversations with AI personas of greats like Taylor Swift, Steve Jobs, Albert Einstein, Cristiano Ronaldo, and many more. This chat revolution app brings celebrated personalities from realms of art, science, history, sports, and entertainment right to your fingertips.