Simple Alarm Clock - Simple open source alarm application for Android devices.
Blanket - Improve focus and increase your productivity by listening to different sounds. Or allows you to fall asleep in a noisy environment.
Alarm Clock Pro - iTunes alarm clock, stop watch, timer, and more!
A Soft Murmur - Ambient sounds to wash away distraction.
KTimer - KTimer is a little tool to execute programs after some time.
MyNoise - Custom shaped online noise machines. Many Many generic sounds