The mobile application’s usability is defined by three major attributes- efficiency, user satisfaction, and effectiveness. A bad user experience (UX) makes users delete app from their smartphones. Generally, users stick with application longer if it is simple, easy to use, and provides the seamless user experience. Advancement in technology has enabled mobile app development companies to develop a wide range of applications. But, not all applications mark success in the application store. Why? The answer is simple. Many app development companies overlook certain factors like simple navigation, high battery consumption, small screen sizes, etc. Therefore, it is mandatory to perform usability testing before deploying an application in the market.