Our app (3D ProBox) is as not visible as we've hoped. We use some software apps to see our ranking when a user make searches in appstore with some keywords. Our app's keyword ranking is really good in Google Play Store but the situation completely changes in App Store. In App Store, especially in USA; our keyword ranking is just like invisible. We want to change this situation. The apps which provide service just like us has really good rankings and we want to caught and pass them.
1-Why our ranking is too bad? 2-How can we change this situation?