Unfortunately, currently its available only in the US, so I'm not able to download it form the Play Store. I hope to find an APK soon enough (i tried), but am pretty sure that the payments will only be made to US accounts. Lets wait n see.
Advertisers place an ad on your lock screen, and you are paid a single cent each time you unlock your device. Of course, this will be limited to just $0.03 an hour, and you can then opt to cash out, use the accumulated funds on a gift card, or even to make a donation to your favorite charity.
So, if you were to unlock your device’s display three times a day round the clock throughout the whole year, you would get $262.80. Not really worth it, but good nonetheless.