The main advantage Android has over other popular OS such as iOS is that it has an Open marketplace for distributing your apps. You can distribute your android apps to all markets and devices or focus only on specific segments, or devices.It is a huge market to target for selling and distributing Android apps, when you publish an app on Google Play, you arrive at the huge installed base of Android. You have control of the pricing for your apps and in-app products and can fix or change prices in any supported currency at any time.