Making money with iAds? Not so easy
webdesktoplife.com
webdesktoplife.com
15,382 downloads for a free app is a low download number. An unpopular app is simply not going to make you money no matter what monetization you try.
Imagine a blog post saying "Making money with Adsense? Not so easy" and then someone proceeds to detail how his site which gets 5 hits a day isn't making much, so he concludes that there's no money in websites using ads. And I suspect if this app had started as a paid app, he would have also made a piddling amount and would have written a comparable blog post about how you can't make money selling apps.
That said, iAds aren't doing well. Apple seems to be having trouble filling them. I think mobile ads are down across the board, so you do need to use multiple networks as people have mentioned.
I doubt that any ad network will gain the traction to dominate the space.
Can you link an app that uses it?
I am mostly just running house ads now, but Mopub is great for being able to promote sales and mix in back-fill ads too.
It's nice that it's all open source too.
The only problem is that the fill rate is low, and I've been horrible at adding something to backfill. Good reminder to do that.