Researching about the key players in the category that your mobile app will operate will surely give some great insights into what your visitors are looking for in an app. How are the apps named? Are they easy to remember? What are the keywords for which the app is ranking? All these analyses may prove to be very useful in promoting the app and placing it in front of the right audience. To start with, create an excel sheet having the list of key features to determine where your app stands against the market competition. This will obviously help you to have an idea whether there are any special features that your competitors have used and you have missed.