Production Shed Pty Ltd has announced Shift Worker 1.4.2, a visual calendar and productivity app for iPhone. Shift Worker is designed for people who work odd shifts or patterns outside the traditional working week. Shift Worker allows users to combine visually-attractive icons with descriptive characters, then plot them on the calendar so their shifts can be easily identified at a glance. Shifts can then be shared with friends and family or saved to the iPhone’s background for quick reference.