Several figures for the beginning:
- more than 100,000 apps are published in App Store;
- the total number of apps in medical category is 1,300 or 1.3 % of the total number of applications in App Store;
- the iFart Mobilе program (special example) was bought by 8,000 of visitors on average daily, when it was number one in Entertainment category (the data from http://www.joelcomm.com);
- there are about 13,000 of apps or 13 % in Entertainment category;
How to estimate profitableness o...