The EZClocking is a portable clocking machine that can be run on the iphone. The application is targeting to the users who need to take attendance constantly such as school teachers, small business managers, and etc. Two major clocking methods are support in the app
Method 1: QRCode scanner, each registered user has a unique QR ID and the code is used to clock-in through the scanner for attendance tracking. (please note that scanner function is not support in this version, but you can still use the QR ID)
Method 2: GPS, each registered user can provide his/her geolocation for clocking-in.
Main Page
http://www.liensquare.com/ezclocking