What's Everyones Favorite Analytics Solution For Tracking CPI Campaigns

Hey Everyone,

What’s everyones favorite analytics solution? What have you used in the past? What’s your current user acquisition strategy? How are you monetizing (ads/IAP)? I’m looking for peoples stories, specifically those running regular CPI campaigns through facebook, leveraging serious demographics targeting. Would love to know how people have structured their process! Thanks!

LordGary