What is good structure of In app item prices, offers?

With what prices, what items should maker give to users?

Of course this depends on specific game, but there can be good strategy about setting price structure, etc.

There is a flurry blog article from 2011

http://www.flurry.com/bid/67748/Consumers-Spend-Average-of-14-per-Transaction-in-iOS-and-Android-Freemium-Games#.U3lgoq1dVvY![](http://www.flurry.com/sites/default/files/blog-images/Flurry_F2P_Transactions_v_Revenue_byPriceTier_v2-resized-600_0.png)