Time Rise - Digital hourglass

Time Rise is a digital hourglass: set a duration then flip your device upside down. The whole screen will fill up with a color of your choice just like the sand would fill up an hourglass. Flip your device on its side to pause the countdown or flip it upside down again to restart.

Time Rise additionally offers a wide variety of customization in the settings section, with multiple display, notification and timer start trigger options.