Google Option Rewards

Google Option Rewards is an app on the play store that lets you earn money to be used on the Google Play App Store.

Google Opinion Rewards is available for free on both Android and iOS devices. Once you've downloaded the app, you'll need to set up a profile and provide some basic information about yourself.

The app will send you occasional surveys based on your demographic information and interests. These surveys are usually short, taking just a few minutes to complete. Some surveys may ask you to provide your opinion on a product or service, while others may ask you to watch a video or visit a website.

They have also introduced Receipt Rewards in the App that rewards you for taking photos of receipt once you have visited some stores but they can take a little time to show up so you would have to remember to keep a hold of your receipt  on the chance that it asks for it.

If you buy Music, Apps, Games, Books or Films its worth picking up this app its easy to use and does not take much time to do the tasks and you can slowly build up money.

If I had one gripe its that the money can only be used on the app store and that it would be nice if could be transferred to your bank or used on other google products say to buy google phones or smart devices.

Looking at the IOS page it looks like you get paid via PayPal so the App may be a better option on IOS compared to Android.

App can be found here. 

Android: Google Option Rewards 

IOS: Google Option Rewards