Android is trusted by more than 2.5 billion active users in 190 countries and is one of the most popular operating systems in the world. Earlier it was the necessity to have an offline shop for a business, then with the passing of time internet came into existence which turned the business method completely. Mobile users were less at the initial stage of the internet and also website was the core requirement of every business because the customers moved to online shopping. After the year 2000, ...