The concept of an "everything app" or a "super app" — which serves as a hub for multiple services within a single user interface — is based on the model for mobile software that's dominant in China via WeChat, the original super app. However, as Axios pointed out, building a super app in the U.S. is tougher than in China because of data privacy concerns, stricter banking regulations and mobile operating systems that make it harder for individual apps to establish their own payment terms independently.