Reviews seem to be very mixed for Perfect Audience; either you love it or you hate it. As there seems to be a 50/50 split between the two, we’ve added it to our lists as there’s a 50% chance you’ll love it. Perfect Audience has been designed specifically for retargeting campaigns on mobile, web, Twitter and Facebook. Using fresh data (not from visitors who visited your site or downloaded and uninstalled you app a year ago), you can design and send out your retargeting campaign here. Fees are based on CPM.