While a couple of bucks for an app may not be a big deal, no one wants to waste money. So try-before-you-buy is a great idea, especially for those apps that you can't full evaluate within the 15-minute Google Play refund period.
Rovio’s success with Angry Birds, the fastest growing game in history, is a great example of how app developers are applying some ‘traditional’ marketing lessons to drive more revenue.
The nation’s app store can be likened to the state of Nevada in 1951, when nuclear weapons testing sprouted a continuous stream of mushroom clouds throughout the flatland.