Today mobile applications have supplanted the programs and have the fitness to help brands construct an association with advanced clients. In any case, when mobile app moderate down or stop or crash, the brand loses its worth in a split second. In an overview done by specialists, more than 61% of clients need their mobile applications to begin working immediately while 49% lean toward the reaction to inputs in few moments. Furthermore, when an application crashes or stops, more than 53% of clients will uninstall it immediately. Dependability and accomplishment of any application rely on upon its improvement process.