I want to ask is there any difference in revenue by using new unity ads 2.0 as compare to unity ads
Unity Ads support Unity 4.2.2 or higher. This is made for people that are still using Unity 4.xx.
Unity Ads 2.0 is for those that are running Unity 5.0.1 or higher.
Unity claims improvement such as new ways to boost your eCPMs and optimized campaign performances in real-time and features that make it easier to explore data across our ad network, and maximize ARPDAU.