IMA iOS Objective-C SDK is provides developers with libraries for building native apps for processing and tracking bulk adverts that run on the iOS platform. It only responds to the upwards of iOS version 6.0.
Google is doing some work on the API that helps manage Chrome extensions. Developments over the last few weeks have shed light on what the changes mean for developers, and not everyone likes what they see. Ad blockers are at the heart of the issue and changes to the API will impact them seriously.