In my iPhone Application iAd displaying in many countries but not in Dubai, why its happening?
Apple only delivers add to a few countries. Not Many.(U.S., Canada, Australia, New Zealand, Japan, France, Germany, Italy, Spain, and the U.K) Most likely, ad sales as low there or they do not have sales people there. So, if you plan to monetize your app, I'd suggest using a secondary ad network for the countries where iAd is not delivering ads.