I have been using adMob, iAd, Chartboost and Vungle.
I like adMob most, very stable & eCPM is fine.
For iAd, it’s really weird, although it’s from Apple, it’s not as stable as adMob (sometimes ads are not showing) and the eCPM is quite low.
I also like Chartboost when it comes to full-screen ads because the ads show up quickly in a nice way and the money is also fine.
Vungle is the only video ad solution I am using. I don’t have enough sample to judge this one yet.
Therefore, basically I am using adMob and Chartboost, but I am trying to add more ad providers.
Do you have any recommendations? and please share some experience with the ad providers.