Google will soon list a price-range for in-app purchases on items in Google Play. Hopefully this new policy will help reduce the number of misrepresented software lurking in the Play Store. In some cases apps, especially games are listed as free, but later reveal subscription fees and pricey in-game items that can be purchased with real world cash.
Price ranges for in-app purchases Beginning September 30, 2014, all apps offering in-app purchases to users will have an “In-app purchases” price range displayed on their detail page on Google Play. Price ranges will include in-app products and subscriptions.
If any of your apps offer paid in-app features or subscriptions, go to your app’s In-app Products page to review the prices and publishing status of your in-app items.
So, expect to see some changes towards the end of September.