ARTstor Mobile for Android, iPad, iPhone, and iPod"All 1.8 million images from the ARTstor Digital Library are accessible for iPad, iPhone, iPod touch, and Android-powered devices to registered Artstor users!" There’s no need to download special software, just go to ARTstor from the Library's home page to access the mobile site.
"Artstor Mobile provides read-only features such as searching, browsing, zooming, and viewing saved image groups. Also try the Flashcard View, which allows you to test your knowledge by viewing the image without textual information, and then flipping the image to reveal the image record."