Great question! All but one of those is a job board, trying to get you to use their site. My app allows you to track everything about your search, rather than drive you to a job board. You meet someone at a networking event, you can take notes on that. Then when looking for a job, you can see if any of your connections are there, track of they helped you. It allows you to track who you've interviewed with, job by job, and how that went. You could keep track of all your skills, hopefully that you have on LinkedIn already. You can track your certifications and training. It's more of a process management tool, than a job board. I'm shocked LinkedIn doesn't have this in their site.