Applications from the Mac App Store can't be run on an iOS device; as the developer needs to create and maintain the two versions separately, having bought one doesn't entitle you to get the other for free.
I bought it on my Mac not realizing that it was a mobile app 3.3.6.ipa. I can't use it on my Mac, or can I? Haven't been able to open it & was hoping that I could use it on my I-phone. I guess that I'm just out the money I spent.