How do you collect application fees?

[Cynthia Stith]

Hello, 

I wanted to reach out to see how other independent landlords collect application fees.

I manage the property from out of state, so physically being at every showing is impossible - and I don't necessarily want to tip my hand that I don't live in the immediate area to prospective applicants.  I have a pretty good system of letting interested applicants that I've had a quick phone screen with use a lockbox to take a peek at the home to make sure it fits their needs, and I then email them an application.  I'm not sure how to collect an application fee.  Any suggestions?

I have used services like Cozy.co in the past to collect rent - but not sure about the application fee.

I know that plenty of services will do the screenings for you, but I don't mind (and actually prefer) to be the one who vets each applicant.  Should I use something like PayPal or similar to collect a modest application fee? 

Thanks for your suggestions!