Post date: Oct 07, 2016 1:31:44 PM
Contains "newly digitized primary source materials into the hands of teachers and museum professionals nationwide. The app is a product of a two-year collaboration among the National Archives, the Library of Congress, the Smithsonian Institution, the National WWI Museum, and others, all working toward the goal of connecting teachers, students and history enthusiasts to primary sources in interesting new ways.
National Archives's Article about it
The free app on iTunes for iPads & iPhones