App Annie provided some interesting data on the top-growing countries, categories and app stores in its recently released App Annie Index 2013 Retrospective report.
Data from the marketing intelligence and analytics platform revealed that "Freemium" as a business model continued to be massively successful for a range of app categories in 2013.
To the surprise of few, the 'Games' category experienced the most consumer spending last year with both the iOS App Store and Google Play experiencing surges in app store game revenue (at the expense of the handheld game market).