RhythmicFlow: Calm Breathing is an offline-first Android app for breathing and meditation. It features ten preset rhythms like Box Breathing and 4-7-8 Breathing, plus five animation styles—Circle, Petal, Rose, Lotus, and Line—that can be switched during sessions. A custom rhythm builder allows personalized patterns with adjustable inhale, hold, and exhale durations, along with custom colors and sounds. Multi-step routines let users chain rhythms, pauses, notes, and media files into guided sequen