So far I have used the PlayDrone data to find out what the most downloaded free games, paid games and paid apps are. There are many useful queries that can be run to try and find a profitable app idea. For example, you could look at apps with lots of downloads but with a bad user rating. You could then look at the comments for that app and find out why the users are dissatisfied with it and make a better app! You could even get a list of all paid apps that have made at least £10,000 if you wanted. It could also be useful to look at apps that have failed, by running a query to find apps that have never been downloaded and then find out why, so your apps don’t suffer the same fate.