Libgdx and third party frameworks on iOS

I want to immerse myself in the game world. For the development platform, I'll probably go with the Libgdx framework. I've read a lot about this and it's really great. But I would like to ask.

Is it possible to include third party frameworks in an iOS project? I read about RoboVM and some bindings. There are several (included) frameworks on their site (I need some of them), but I would like to include some custom ad networks in the iOS (Millenium Media) project. Can I do this with Libgdx and iOS support? I am using Android Studio for development. I can easily add .jar files for android but not .framework files for iOS.

I have the RoboVM plugin installed in Android Studio and I have already compiled a simple project successfully. However, I have no idea how to enable third party frameworks.