Clock In Clock Out is a free iPhone application developed by ClockinClockout Inc. It falls under the category of Business & Productivity and aims to help businesses track the locations and hours of their workers. With this app, employers can confirm that their employees are actually where they claim to be and working during the specified hours.

The main feature of Clock In Clock Out is its simple and automated check-in system. Workers can easily check in when they arrive at their job location and verify when they leave. This eliminates the need for manual time tracking and ensures accurate records of employee attendance. The app also warns users that continued use of GPS in the background can decrease battery life.

Please note that Clock In Clock Out only works for enrolled members. It is important not to download the app unless you have enrolled with ClockinClockout Inc. for a 30-day free trial from their main website.