Does the iEMU emulator work for all iOS apps?

[Android Central Question]

I want to use an app on my android smartphone that unfortunately is only compatible with iOS. I've been seeing good reviews about the iEMU emulator and was wondering if this emulator will make all iOS apps compatible with android, or does it work with some and not others?

I'm asking because this app is not free and I want to make sure it'll play before I make an investment.

Thanks!