Do you make money on rental applications?

[Ryan Davis]

I am in the process of renovating my first rental unit. I am house hacking on a duplex and almost have the other side ready to rent! I hope to have it move in ready by the first of December. So here's my question for all of you experienced landlords...

Do you make money on applications? If so, how? If not, why not? 

If you do make some side cash on the applications, what screening service do you use, how much do you pay and what do you make them pay? 

Thanks!