Google Opinion Rewards - Answer quick surveys and earn Google Play credits with Google Opinion Rewards.
Receipt Hog - A fun and rewarding way to turn everyday shopping receipts into cash.
Quick Thoughts - Quick Thoughts: Take Surveys Earn Gift Card Rewards is a free to use application that allows you to earn survey rewards like Amazon Gift Cards and others.
CashPirate - Download CashPirate app for Android. ayeT-Studios' personalized beta-testing program that pays mobile phone users to download and install new apps. .
Survey Junkie - Survey Junkie is an online community with over 10 million members dedicated to making your voice heard.
Verydice - Verydice is a casual application where you can roll the dice to win tickets and free real stuff without any effort.