Cost Google Duo Questions › Category: Android › Cost 0 Vote Up Vote Down Roger Homer asked 3 years ago How can Google Duo be free when you have to pay for Wi-fi to use it? 1 Answers 0 Vote Up Vote Down Best Answer admin Staff answered 3 years ago Hiya, Well, this is how all things work. Google has nothing to do with your home internet service. Duo does not, nor ever has advertised “you dont need data/internet access to use Duo” Is there anything else you need explanation of?