the German, UK, and U.S. markets for medical smartphone apps (Apple App Store) and conduct 16 semi-structured interviews … App Store customers than apps created by professional software companies. Apps developed by patients' relatives achieve … significantly more downloads and generate on average three times higher revenues per year. The initial medical smartphone app …

Mobile APP develops very rapidly, while, different from some fixed contexts using traditional products, people can use … the mobile applications anytime, anywhere. This paper combined the reference literature with the current situation of APP … market, built a model of using mobile APP named "context-APP-gratification". Referred to context, referring to relevant …