Successful designs are based on understanding who you are designing for, what are their current needs and behaviors, identifying deep and actionable insights to influence their behaviors, and testing and refining design prototypes. Measuring the success of those designs can be done by measuring their impact on specific behaviors... React Native enables us to build world-class application experiences on native platforms using a consistent developer experience based on JavaScript and React. The focus of React Native is on developer efficiency across all the platforms - write once, deploy anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native... A general-purpose, multi-paradigm, compiled programming language created for iOS, OS X, watchOS, tvOS and Linux developed by Apple Inc. Swift is designed to work with Apple's Cocoa and Cocoa Touch frameworks and the large body of existing Objective-C code written for Apple products. Swift is..