How to build a chart-topping app game Tips from a pro The app store is a peculiar place. Capable of catapulting even the most unlikely application to astronomical download numbers overnight, it is unlike a lot of the rest of the tech sector; a place where anyone has a chance. Some simply do strike it lucky. The likes of Temple Run spring to mind. An application put together by a skeleton crew, it has now topped 40 million downloads. Games like Angry Birds and Fruit Ninja stay in the Top 10 longer than a Coldplay single, but it's easier than you think to knock those app versions of Chris Martin and his bare feet from the top spot. Pocket-lint recently lent its ears to a rather interesting keynote speech by Bart Decrem. One of the founders of Tapulous, a company that's App Store royalty, he is now heading up Disney's mobile division and was responsible for Where's My Water. He certainly has the magic touch when it comes to application design. So, when he began offering up snippets of what makes an application succeed, we practically burnt a hole in our notepads writing them down. Being generous chaps, we thought we'd share them. Quality No app is even worth considering if you aren't going to put the effort in. Just because something costs 59p, that doesn't mean it's only worth the equivalent of a Dairy Milk in effort. This is an app that could be downloaded 40 million times, after