Reason - Reason is a program that you can use to create music.
Google Opinion Rewards - Answer quick surveys and earn Google Play credits with Google Opinion Rewards.
Virtual Forest - Live VR experience of a forest changing through the seasons
Receipt Hog - A fun and rewarding way to turn everyday shopping receipts into cash.
VeeR VR - Global VR video community
FreeMyApps - FreeMyApps lets you get rewarded for watching cool videos, playing fun games, and trying new apps.