Everything from the way you describe the functionality of your app to the images you use for your screenshots will impact a customer's initial perception of your app. Here are a few tips that can help you create a great presence for your app on the App Store:
Write your Application Description with a focus on what makes the functionality or design of your app unique.
Use engaging screenshots that demonstrate the special capabilities of your application.
Keep your application icons free of terms like "sale," "lite," or "free."
Make sure your screenshots and application descriptions do not include objectionable material or irrelevant content.
Leave out specific information about the price of your app in your Application Description.
Have your application URL take the user to a functioning website with content about and support for your application.
Consider these tips the next time you upload metadata for your iPad, iPhone, and iPod touch applications.