As a regular WhatsApp user, I believe WhatsApp's UI can be improved to provide a better user experience than the current design. This is my personal project that I worked on by designing an alternative WhatsApp's UI for iOS 7. Minimalistic design with clear sense of app navigation and context would give the user the freedom to control the flow of the app. It's not always about how things look, but it's also about the flow and the functionalties of a product. True story.