Best rent collection App?

[John Poling]

Landlord with 15 Units. A mixture of young and elderly tenants. My biggest headache is collecting rents each month. Some pay in cash, money order ( which some of these I can't mobile deposit) and checks. I'm tired of driving around collecting from those that don't send the money or that's late. I'd like to set something up that they can pay with a Card automatically on the first of every month or that charges the $50 late fee after the 5th day of the month. I'd like a way to track who paid and how. Any help here is greatly appreciated. I'm a year into this and am terrible with paperwork but want my business as efficient as possible with systems in place so that I can expand and add to what I have.