Hi! I have been developing for android for a while now. I have been experimenting with different ad-publishers. I started with admob and last week i implemented madvertise ads. Madvertise gave me the same amount of revenue that in a week that admob gave me in a 2 months. Im thinking of implementing leadbolt fullscreen ads when a session with my app ends. Does anyone have experiences with fullscreen ads? Do users find them annoying? What ad-publishers do you recommend?