Device, method, and graphical user interface for accessing an application in a locked device

While an electronic device with a display and a touch-sensitive surface is in a locked, passcode-protected state, the device displays a lock screen user interface on the display. The lock screen user interface includes a plurality of restricted application launch icons, each restricted application launch icon corresponding to an application. The device also detects user input to activate a respective restricted application launch icon; and, in response to detecting the user input to activate the respective restricted application launch icon, starts a restricted session for a respective application that corresponds to the respective restricted application launch icon, wherein the respective application is configured to generate one or more content items while in the restricted session, and maintains the device in the locked, passcode-protected state for applications in the device other than the respective application.