iStock 3.0 is a multimedia app developed by Getty Images Inc. for iPhone users. It is a full version app that provides access to a vast collection of images and videos that can inspire anyone. With iStock 3.0, you can easily search, save, and share images, create Boards, and do much more.

The app's search feature lets you find images and videos from the entire iStock collection. It also provides an option to filter the search results based on several criteria, and you can save these filter settings for future use. The full-screen view of the images allows you to rotate and zoom in on them, and you can also view more images from the same contributor.

iStock 3.0 lets you save images to your existing lightboxes, which are now called Boards. You can also create new Boards and use them on your iOS device or computer. Sharing images and Boards via email and messaging is also possible with this app.