A quick look at the Play Store reveals that Google Opinion Rewards has received a new update that makes it available in Denmark, Norway, and Sweden. If you’re the denizen of one of these nations, then today is your lucky day. Google Opinion Rewards is one of those simple apps which, after you start using it, you won’t remember how you lived without it.

For those not in the know, Google Opinion Rewards is a clever analytics tool for Google and money in the bank for you. The heart of advertising is information. You can’t sell somebody something they have no interest in buying, so if you know a lot about the spending habits and interests of your audience, then you can make better decisions about what kind of advertising to put in front of them. With this app, Google simply periodically asks you questions and rewards you for volunteering your answers with Play Store credit. The change accrues slowly, but if you’re a sparse app downloader then you might never pay for an app again.

All in all, it’s a great app that benefits both you and Google… so long as you don’t mind Google learning more about you. If you aren’t already using it, click the button below to grab it from the Play Store. In the comments, let us know your opinion of this app. Money on the ground, or ruthless information farming? Give us your thoughts!