What's the best Android app for playing white noise to help my baby sleep?

White Noise is an Android app specifically designed to assist with infant sleep by providing a variety of ambient sounds that mask disruptive noises. It includes options like fan hums, heartbeat simulations, and gentle shushing, which mimic womb-like environments to calm babies. A key feature is the 30-second fade-out timer, activated with a single tap on the stop button, allowing sounds to gradually decrease rather than cut off abruptly—this helps prevent startling awake during light sleep phases. Users report significant improvements, such as reduced time to fall asleep; one review mentions dropping from an hour to just 10 minutes. The interface is straightforward, with one-tap controls that are easy for sleep-deprived parents to operate, even in low light. While the sound library isn't the most extensive compared to some competitors, it covers essential needs without complexity. Long-term users, including those with seven years of experience, highlight its reliability, often citing hospital recommendations. However, the app lacks advanced features like sound mixing or scheduling, but for dependable, basic white noise playback, it remains a top choice for establishing consistent sleep routines.