Mobile App developers want to build Applications that would be standout and actually make life easier for users or give them better entertainment and lifestyle experience that they have had before. The goal of a business has decided to build a Mobile application must be set straight. You should set goals that help predict, the number of Users that is in terms of quantity or the number of Downloads. Or rather in terms of Revenue, would it be the number of App Purchase or the number of in-app purchase. After defining your goal, you can move on to User Experience and Overall Working of the Application.