Make money by making an Android app

1. In-app advertising: Running ads inside your app generates revenue. The user doesn’t have to pay, and you get money. It’s a win-win. Currently, all AppsGeyser apps run ads for you, and when your app gets enough uses, you get paid.
2. In-app purchases: Give a game away  for free, but have the best goodies available for cash. It works for Zynga, and it can work for you if your game is super-addictive.
3. Bolster your business: Some apps help your business generate income by connecting you more directly and interactively with your customers. For a great example of this, look at the Charlotte Mobile Real Estate app.