Nearly a billion people around the world today rely on WhatsApp to stay in touch with their friends and family. We’re happy to announce that WhatsApp will no longer charge subscription fees. Over the next several weeks, we’ll remove fees from the different versions of our app. We will test tools that allow you to use WhatsApp to communicate with businesses and organizations that you want to hear from. Starting this year, we want to test new tools to make this easier to do on WhatsApp while still giving you an experience without third-party ads and spam.”]
Source: https://blog.whatsapp.com/making-whats-app-free-and-more-useful