Breathe in focus. Breathe out stress. One breath at a time OBAT (One Breath at a Time) is a free, beautifully simple breathing app designed to help you reclaim calm in a chaotic world—rooted not in trends, but in tradition. Its 26 carefully curated breathing exercises are drawn from a century-old foundational text on breathwork—preserved, refined, and brought into the modern era with respect for their original intent: to harmonize body, mind, and spirit through conscious breath.