Using random assignment, half of the dyads will also be provided with a) access to a secure, confidential discussion board, where they will be able to post new messages and respond to messages posted by others and b) mailed information packages that contain information about coping with PTSD, coping with a spouse's PTSD, and strategies for managing relationship distress associated with PTSD. Those dyads who do not receive access to the discussion board will still receive access to the mobile apps but will not have access to either the discussion board or the mailed information packages.