Rayyan is designed to simplify and accelerate the systematic review process from start to finish. To begin, users upload citations and full-text articles directly into the platform, creating a centralized repository for their review project. The intuitive dashboard allows for the creation of multiple review projects, enabling researchers to manage various studies simultaneously. Collaboration is a core aspect of Rayyan; users can invite team members to work on projects, facilitating real-time cooperative screening. The platform's primary function is to streamline the initial screening of abstracts and titles. Users leverage Rayyan's AI-Powered Study Screening, which learns from their inclusion/exclusion decisions and provides intelligent suggestions, significantly reducing manual effort. Before screening, Rayyan automatically detects and flags duplicate studies across various databases, ensuring reviewers focus only on unique research. For enhanced accuracy, the Dual Review feature allows two reviewers to independently assess studies. A "Blind Mode" can be activated to prevent bias by concealing other reviewers' choices during this independent assessment. Users can define custom screening criteria, tags, and labels to organize and categorize studies efficiently, tailoring the workflow to their specific research needs. Once the initial screening is complete, reviewers can proceed to full-text review directly within the platform, reading articles and extracting data. Should conflicts arise during the screening process, Rayyan provides mechanisms for conflict resolution, requiring all reviewers to align on a single decision. Furthermore, a Quality Assessment Tool is integrated, offering pre-defined criteria and a customizable scoring system to evaluate the quality of included studies. Finally, data and results can be easily exported in various formats like CSV, Excel, or PDF, facilitating sharing and further analysis. Rayyan's accessibility as both a web and mobile application, including offline functionality, ensures researchers can work on their reviews flexibly, whether in the office or on the go.