Google Opinion Rewards is a tool for earning rewards from Google by offering your opinion and participation in the improvement of its services. It rewards you with Google Play credit, letting you access paid content at a discount.

The first thing you have to do once you download this tool is answer a few basic questions about yourself. Google uses this information to send you different types of questionnaires. Depending on your answers, the app sends you questions once a week, although sometimes it can be more or less frequently.