How does the tenant pay actually work for applications?

[Account Closed]

I checked the website of Rentprep and Smartmove, it says you (landlord) can pay or the tenant. How does that work exactly? Do I need to collect a check with the application from the tenant and then pay it as I screen them through the website? Do I use Smartmove/Rentprep and the website sends them an email to pay for the screening so I can view it?

This is probably a dumb question but both websites are unclear on what I should be doing or collecting if I want the tenant to pay?