From big scale industries to small-scale businesses to novel start-ups, everyone has joined the stampede to embark their presence on users mind for a long term. One of the easiest ways for easy reachability goes through the domain of mobile application development . In the past few years, the eco-system of mobile applications has seen a huge leap. The number of mobile users is also increasing every day. Thus the easiest way for the companies to reach to the prospective clients goes through the path of the development of mobile applications. What statistics say on mobile app usage? The number of the mobile application downloaded worldwide in 2017 was 178.1 bn. The number of apps available in the Google Play Store as per March 2017 was 2.8 million. Till March 2017, the number of apps available in Apple’s App Store was 2.2 million. These significantly huge numbers tell us about the importance of mobile apps at the present time. Best design principles to develop...