Review of Nine powered by the Slant community.
A good Android Exchange Client. Well worth the $15.
Ranked in these QuestionsQuestion Ranking
Pro Extremely customisable
Pro Supports latest ActiveSync protocols
As of this writing (Sept. 2016) it supports version 16.
Pro Convenient theme options
The black theme is easy on the battery and eyes.
Pro Good customization
But not so many you have to read and dig through documentation to do what you want.