Developing an app for your business can help you reach additional customers to supplement your traditional website. Mobile search has become very popular today, especially with the younger audience. While your current customers could spread the word by talking about you to their friends, new users could find you via a generic search. Additionally, integrating major social networks with your app furthers the scope and reach of your business.
You can use your app as a tool to showcase your products and services. Users visiting your app would then have instant, one-stop access to you. You can keep updating your app, to feature different new products every once in a way. Offering users interesting offers and discounts encourages them to visit you more often and spread the good word as well.