CustomSoundsOfNature is a great iPhone app for listening to free, soothing and relaxing sounds of nature customized to your liking. It is a free app that lets you mix some of the most soothing sounds of nature and customize them by setting things like volume control, interval of repeating sounds and timers.

Start by choosing one of the six different themes like Calm Ocean or Rain Forest and then add custom sounds to it. If you don’t want the sounds to go on all night, simply set a timer to shut the app off. You can also use the built-in alarm clock to wake up to these soothing sounds.

Features:

• Listen to sounds of nature on your iPhone.
• Choose from 6 different nature themes.
• Choose the sounds you want to hear.
• Built-in timer and alarm clock.
• Customize through volume control and recurring sounds.
• Use bookmarks to remember your settings.
• Similar sites: SoundSleeping, iSerenity, NapSounds, SimplyNoise and WhiteNoise (iPhone).

Check out CustomSoundsOfNature @ iTunes App Store (Via LifeHacker)