RevenueFlex is the layout optimization solution of AdReact. Today, still most publishers use traditional methods to select the best layout and ad choices for their websites. Most of the time their choice is not the best one from both revenue and user experience point of view. RevenueFlex is developed to address this inefficiency. It improves revenue and user experience by optimizing layout, ad sizes and several other factors in an automated and data-driven way. With RevenueFlex, we guarantee maximum revenue increase by giving up a minimum level of user experience by utilizing advanced machine learning techniques. Implementation process is super easy and crafted to minimize effort on publisher side. To start, publishers just need to add a script to their websites and RevenueFlex takes care of the rest. It neither crowds your website with more ads nor decreases page speeds. Last but not least, publishers using their own AdSense are also able to benefit from RevenueFlex.