I have android application with about 1 Million downloads and most of my application users are located in the Middle East. Before two weeks the downloads were 200K and the revenue was reasonable and CPM was $0.15 (yes it is Low CPM), ads requests were about 500K.
Now after reaching 1 Million downloads the CPM is $0.04 and the revenue is less than before, and Ads requests now are 1.5 million.
All the time during my app life time, the fill rate is more that 99%.
I have many thoughts about this drop in CPM: * Old inventory (before two weeks) was higher in price compared to current campaigns.
In all cases, it is very low and I'm feeling very bad.
I started to think about using filters to get more profitable ads even if the fill rate is went down.
My question is: 1- What tips do you know to filter out cheap Ads? 2- What Ads Category/Type are better to enable in admob filter settings? Note: I mean by types something like: Communications, E-commerce, Games, (Movies, TV, and Entertainment), etc...
