Hi guys, I recently tested my game with voodoo, and they said that cpi in my game is $0.2 Now I myself want to advertise my game,I tried several options fb video ads for games but cpi is 3+$. I used the same 30 second video who used voodoo. Who knows how they do it?
$0.2 is a good result. Congrats. Regarding your testings you are missing a vital thing for running ads. It is lookalike audience. You simply don't have enough data to make lookalike audience comparing with Voodoo. As Voodoo did much advertising, they collected a large FB ids user base of those who play their games via FB SDK. So, the answer to your question is TARGETING. Voodoo makes excellent targeting via lookalike and their own collected audience.
And in addition there are some tricks they make for their video ads. Some things that increase conversion. It can be a visual effect and call-to-action element.
CPI with Voodoo seems good. What is your retention result with Voodoo? Current ads run by Voodoo right now : https://www.facebook.com/voodoogames/ads/?ref=page_internal