Ad Age is an iPhone app developed by Crain Communications Inc. It falls under the Education & Reference category and specifically focuses on the world of advertising and marketing. The app provides users with a daily dose of industry news, along with reviews of the best creative work.

The app allows users to stay updated on the latest happenings in the advertising world, with the ability to save, share, and search for articles of interest. It also provides alerts for breaking news, ensuring that users never miss out on important updates.

While the Ad Age app is free to download, it offers a small sampling of articles to non-subscribers. For full access to all features and content, users can subscribe to the app. Whether you're a marketing professional, a student, or simply interested in the business of brands, Ad Age is a valuable resource to have on your iPhone.