N.O.V.A 3 Freedom edition

Apparently the free version of N.O.V.A 3 has Controller support. Could somebody check it out
If it doesn't; is it worth getting the Duo controller for $8? I know it's really bad, but at that price and since it works with N.O.V.A 3, maybe i should get it...

I am fairly certain it only works with the Duo. I have considered picking up a Duo for this game alone. It is the best shooter on iOS.