Streetbees is a survey app that pays you to answer their simple surveys. It is a 14MB app downloadable on Google Play store. Just download, register and answer the live tasks. They send surveys after every two weeks. The rate of payment varies from different countries. I am from Philippines and I get 1 dollar per survey. Payment is sent via PayPal.

I haven't received my payment yet. But, I have seen many payment proofs. There are surveys which I do not qualify to answer. So, I have complete 5 stories/surveys where one is approved for payment. 

You may want to try it and earn on your free time. Here is my referral link: Use my code 91779M. Enjoy!