[Android] [Guide] Gifts from Google - How to get Free Platinum/Google Play Credits

[Xenobiotic]

This is why I wish I had an Android and iPhone..

[Swimmingstar]

And the free platinum is gaining on which point?

With the money you get from answering the Google surveys you can buy platinum.

Do we only get one survey a day? Or how often do they become available?

It depends on what you put as answers for region, age, etc. That's why I'm trying to find out what the best settings are.