Universal App - Different frame for each device?

Hi everyone, I've got a question and I was wondering if anyone would be able to help me...

I'm new to Fusion, but I've made a few apps before using other programs. Basically what I would like to do is make an app which detects whether it is running on an iPad, or iPhone 4,5 or 6, then goes to the appropriate frame / scene for that device. I have completely separate artwork for the iPad and iPhone versions of my app and I don't want to use any kind of scaling / cropping to make the app fit different screens.

Sorry if this is a stupid question, but I've found it surprising hard to do this with other programs...

Welcome to the forums Shortwave.

Sure this is possible with Fusion 2.5. You can use the built-in conditions (Runtime Expression) to detect what runtime the app is running on and then go to a specific frame. You can also use the runtime expression to perform certain window/scaling functions using each exporters built-in window properties and/or the window control object.