Thanks to Arne to bring the AdMob plugin to Construct 2 community, and thanks to Ashley to introduce AdMobPluginPro in Construct 2 r180.
As response to some complaints about the 2% Ad traffic, I've just update the use term of AdMobPluginPro to:
option 1: use it for FREE, just share 2% Ad traffic.
option 2: buy a license key for $14.99 only, and keep the 100% Ad revenue and Ad under your fully control.
This price is much cheaper than the $50 Admob plugin for unity.
I think starters will like option 1, while mature developers with lots of income will prefer option 2. You can choose the best option to minimize your cost.
I know everyone want something free, but I still need some income to keep my commitment on high-quality product and commercial-level support and maintenance effort.
Thanks for understanding.