Every night you grow a star little by little while you sleep. When your alarm goes off in the morning you'll wake up to a brand new star, ready for you to collect. You have to hurry though, if you don't collect your star in time by completing a challenge, it will explode, destroying your night's work.
Turn your iPhone and iPad into a real watch using "Stand Clock display" app. Use it as a desk clock during the day or at night. Customize clock to make it fit better your style.