385% Growth Forecast for the Global App Economy
Apps
The country contributing to this figure the most, is and will be China. Come 2021, some $2.6 trillion of revenue is expected to come out of the country - an increase of 228 percent. Of the major markets, the United States is set to provide the biggest proportional increase - hitting $820 billion on the back of a 310 percent rise.

Description
this chart shows the estimated total gross consumer spend in the mobile app market in 2016 and 2021.