The bar chart illustrates how many apps were sold on the iOS App Store, Google Play and Amazon Appstore over a 5 year period (2010-2015).
Overall, it is clear that the number of apps sold in all 3 shops grew dramatically over the period, with the biggest increase being in the final year. While the iOS App Store was the biggest seller of apps until 2013, it was overtaken in the final year by Google Play. However, both shops sold significantly more than Amazon Appstore.
In 2010, iOS App Store dominated the small market with sales of around 175,000 apps. Sales then grew consistently to hit just over 750,000 in 2013. At the same time, while Google Play had almost no apps in the first year, it too saw a steady rise, finishing at just under 750,000 in 2013. However, by 2014, sales of apps at Google Play had surged to overtake those of the iOS App Store, with the former recording roughly 1,400,000 sales and the later just under 1,250,000.
As for Amazon Appstore, it was not represented in 2010, only entering the market in 2011 at a very low figure. Sales then grew very slightly over the next two years, but like the other two shops, rose more in the final year, ending at just over 250,000, which is the same level as the iOS store’s in 2011