CATS is described as 'Create candidate statuses and trigger automated actions like emails, event invites, and more. Create and customize statuses to reflect your hiring process, and easily map them to report on the big picture' and is a HRM software. There are more than 25 alternatives to CATS, not only websites but also apps for a variety of platforms, including SaaS, Android, Windows and iPhone apps. The best CATS alternative is Talecto. It's not free, so if you're looking for a free alternative, you could try OpenCATS or HyperHire. Other great sites and apps similar to CATS are Recruitee, Chatkick, Greenhouse and Crelate.