Rayyan (RAY-on) is a 100% FREE web application to help systematic review authors perform their job in a quick, easy and enjoyable fashion. Authors create systematic reviews, collaborate on them, maintain them over time and get suggestions for article inclusion.
Rayyan also has a mobile app. With this app, you can screen your reviews on the go. You can even use the app while offline; once connected, the app will automatically sync back to the Rayyan servers!
