Social media marketing as a rewards program

I am wanting to create a rewards program for a local business. They have several followers/likes and is very active but no one checks in or really posts about them. I am trying to change that. I am wanting to find a program that tracks individual users. The idea is that in a given time frame, lets say 1 month, i want to see how many times a customer interacts with the page. Lets say a like is worth 1 point, a check in is worth 1 point, a tag is worth 2 points, a comment is worth 2 points and a share is worth 3 points. The points total up to rewards for the person. I don't care if this maybe is a more than 1 program kind of thing or if i even have to do the conversions myself, but the main thing is the tracking how how many times someone does something in a given time frame and that i can identify that person. Does that exist? If not is that something you all would use? because i will totally build it if i have to.