Participate in and manage research studies that use Sona Systems for participant management. Participants: see available studies, sign-up for a study, view your schedule, and join online research. Researchers and Principal Investigators: View your study schedules, grant credit, add timeslots, contact participants, and more! Note that some features, like adding a new study, are only supported in the web version and not the mobile app. You will need to know the URL of your Sona site in order to use this app.