Google survey is survey to earn google points which you can redeem in play store.
Just you have to give some information on survey and all the given information should be correct. You just have to select options given in the survey and base on your survey information Google Rewarded by Play Credit.
The concept of google survey is just simple they want some information like whats your age what would you like and which brand do you prefer. All the question is simple based on your daily life. Google earn money by Branded company which ask google to take survey by their user and some of its percentage is given to user as I said in form of play credit. I like the concept buy sharing information earn credits.
Layout of the app is very nice so simple and easy attractive. The way of presenting the survey is good. But the feature is less it does not tell when will the next survey come. They should only improve in this section and it is better if they give real money in our account instead of giving play credit.
Well something is better than nothing. This I found is an average app to do survey and earn credit