First, the majority of developers chose to port existing webbased or standalone desktop apps to mobile devices, or develop similar one based on those web-based or standalone concepts. Yet, users gave high ratings to new, innovative apps that could take advantage of unique features of mobile devices, e.g. tracking tools. In other words, while m-health apps are by definition e-health applications running on mobile platforms, m-health apps have their own unique characteristics that warrant corresponding design and development approaches.