The LessonSketch Viewer is a downloadable application that allows users to participate in supported* LessonSketch Experiences without requiring a user account or a browser. The Viewer runs on any Macintosh computer that supports the Adobe AIR runtime environment. Please visit https://get.adobe.com/air/ to download and install Adobe AIR. (Note: you may need administrator privileges on your computer to install the Viewer and/or the AIR runtime environment.)
* Not all LessonSketch Experience features are currently supported by the LessonSketch Viewer App.