To create a mobile app can cost little as nothing to a huge amount depending on the type of apps, functions and hosting platform. After creating an app, people also pay to promote the usage of such app which adds to the cost. But with continuous usage cost associated with the production of the app is recovered. One way app manufactures make a living is through the running of paid adverts on their apps, also most hosting companies pay manufacturers pay app download, which still exposes the importance of promoting the apps functions.