The CLI TRI App is a mobile application designed for smartphones and tablets to support the efficient conduct of clinical trials. It presents key trial-related information in a clear and user-friendly structure. Tailored to each specific study, the app offers practical, time-saving solutions aimed especially at operational staff at clinical trial sites—such as investigators, study coordinators, study nurses—as well as Clinical Research Associates (CRAs). Importantly, the CLI TRI App functions as a read-only information tool: it does not collect any health or other personal data, nor does it store or process any study & patient results.