Be Calm - Sleep Sounds & Relax is an iPhone application designed to help users unwind and achieve deep, restful sleep through a variety of soothing sounds. The app features an extensive collection of nature-inspired audio options, including Green Noise, White Noise, Brown Noise, and Pink Noise, alongside other calming sounds aimed at relieving stress and anxiety.

In addition to its diverse sound offerings, Be Calm includes a timer function, allowing users to set how long they want the sounds to play during the night. Users can also create custom sound mixes, adjust individual sound volumes, and save favorite sounds for easy access. The app supports offline use and is complemented by guided meditation sessions, making it a versatile tool for relaxation and sleep enhancement.