Calm is a popular meditation and relaxation app designed to help users reduce stress, improve sleep, and cultivate mindfulness. It offers a variety of guided meditations, sleep stories, breathing programs, and relaxing music. Users can browse content tailored to their specific needs, such as anxiety, focus, and self-improvement, in order to achieve a sense of calmness and balance in their daily lives. A subscription typically provides access to the full library of content and additional features such as offline listening and new personalized content updates.