Yahoo Gemini Adds Custom Audiences For In-App Actions And CPA Target Optimization Published on November 27, 2015 in Yahoo Gemini Adds Custom Audiences For In-App Actions And CPA Target OptimizationFull resolution (800 × 551) Yahoo Gemini Adds Custom Audiences For In-App Actions And CPA Target Optimization Hi, Welcome Welcome back Yahoo Gemini Adds Custom Audiences For In-App Actions And CPA Target Optimization