Nick from Airpush here. We are the largest Android only ad network, and we have plenty of premium traffic available world wide across our different mobile in app ads. Our new 360 banner ads are highly engaging and cool for users to view.
For publishers, our Google Play compliant SDKs has a pay per download ad type, where you can earn up to $0.04 per new USA user install and EULA opt in, along with CPMs on banner and interstital ads.
PM me any questions.
Airpush Nick