FitFlow centralizes operations for fitness professionals and facilities, combining client management, workout programming, scheduling, course management, and performance tracking. Accessible via web browsers, progressive web apps, and mobile apps for iOS and Android, trainers can create workout plans on desktops, while clients access them on smartphones or browsers. Client profiles include training programs, body measurements, and progress tracking. A calendar organizes appointments and sends reminders. Facilities manage classes, reservations, waitlists, and access. The client portal provides workout plans, appointment details, and communication tools. For CrossFit and functional fitness, features include workout-of-the-day creation, performance tracking, and leaderboards. Nutrition planning tools and six fitness calculators are available. Data security includes EU hosting, encryption, and row-level security protocols.