The best way to position your application is to stand out from the crowded App Store. This can be achieved by building a unique app that is inspiring and encouraging. There are thousands of apps which are run-of-the mill kind of apps with mobile app developer trying to make some quick money. Try to develop up a new product or make add-on to the existing categories. It will be an uphill task to push your app if you are just trying to make some improvements to something which is already available.