Last month, we heard that Google was looking into offering rewards if users opted-in to mobile data usage tracking, but it looks like Google has at least one other idea to trade rewards for data. Today, Google released a new app for Android called Google Opinion Rewards which will give you Google Play Store credit in exchange for completing surveys...
Source: http://www.phonearena.com/news/Google-Opinion-Rewards-will-give-you-Play-Store-credit-for-completing-surveys_id49115
Source: http://www.phonearena.com/news/Google-Opinion-Rewards-will-give-you-Play-Store-credit-for-completing-surveys_id49115