How can I add Google’s AdMob or AdSense to a Buildfire app?

Buildfire: I’m looking to add some advertisement delivery services to my BuildFire app. AdMob or AdSense.

AdMob requires access to configuration files, such as iOS’ Info.plist file. I don’t see a way to configure that from the interface.

AdSense can be included with some javascript embeds, is that the go to way? Are there any best practices or recommendations for getting this done?

I guess there’s a third option of adding iFrames but I wonder if this might be blocked within the editor after deploying the changes. Will this be an issue?