Is it possible anyhow to load resources to an iOS app after it is installed on device?

I want to reduce the size of the app to its minimum level. So what all resources i can load from remote after installation? I know I can download images from remote. But can I download libraries or pods from remote after installation? I know we need those files to generate ipa files. Is there any way to setup app with minimum required code, and "load" rest of the code from remote, and is it even possible?

One a different note, I think there should be a framework which checks for existing libraries (like AF Networking) on device, and if it is not there, then downloads it, and all the apps which need it use it. This will help reduce the size of apps considerably.