Mobile ad network Airpush now has 90,000 apps on its roster and is paying out around $4 million to developers each month.

This means the company has doubled both the number of live apps on its network and the amount of money paid to developers since August 2012.

The company has released its SDK 6.0 which adds in-app banner ads, improvements to push notification ads, and rich media and video ad units. New advanced analytics tools have also been added.

“Our new advanced developer tools [give developers] the ability to create a complete picture of their business health, so they can reinvest intelligently and with confidence,” said Asher Delug, CEO of Airpush.