Changes date, adds details, background on price increases Sept 20 (Reuters) - Apple Inc AAPL.O said on Tuesday it will raise prices of apps and in-app purchases on its App Store from next month in all of the euro zone and some countries in Asia and South America. A rapid rise in inflation, interest rates and energy prices this year has hammered the yen, the euro and most emerging economy currencies. Apple, which launched its latest generation of iPhones earlier this month, has been developing its services business to reduce dependency on its mainstay smartphones.