Superstar
Employers looking for a cheap and modern alternative to the time clock are going to want to check out the TimeStation app. The TimeStation app is an iOS app that lets you turn your iDevice into a time clock.

The TimeStation app is free to download and works using QR codes. Employers assign cards to their employees with their custom code. The employee needs only to scan their card in front of the iDevice’s camera while the TimeStation app is running to clock in or out. Additionally, each employee is also given a four-digit code allowing them to punch in or out should they leave their card at home. The app stores all of its data in the cloud so you don’t have to worry about overloading your iPhone.