Make and sell your apps.

With so many smartphones and tablets, app development can be a very lucrative business. You can learn about developing
apps online — there are various tutorials available for free. That's the easy part — the hard part is coming up with an idea
that 'clicks'. Once you make an app, submit it to the respective app store, set a price and choose whether you want to earn
from inapp advertising. Your earnings, after deducting the appropriate fees, will be paid monthly.