Getting a newborn to sleep, or even just break out of a crying fit, is no easy feat. White Noise helps by flooding baby with soothing sounds, from "Heavy Rain Pouring" and "Ocean Waves Crashing" to "Extreme Rain Pouring" and "Stream Water Flowing." It's easy to switch between sounds and adjust the volume to find the mix that works best for baby. Only one downside: The app doesn't work in the background if you exit it to work on other things. Best to download it onto one of the old disconnected iPhones sitting in a drawer and make that baby's iPhone.
Source: Time Magazine