Best App or platform for automating rent collection, late fee notices, SMS messages?

[Scott Sammons]

I self manage 30 units. Up until now, I have tenants pay through Zelle. Every month I am texting 4 or 5 tenants to remind them to pay rent or trying to collect rent fees. Several times a year I am am sending out a text message to all tenants (freeze warnings, inspection reminder, etc) I am looking for an online platform that has a good app as well as a website that I can use to do those tasks. I primarily want to automate rent reminders, late fee warnings, send blanket text messages, as well as have a user friendly app or website platform where my tenants can make ACH payments, or possibly even pay rent with a credit card. It looks like Buildium may be a "go to" but looks more robust than what I may need. I have seen suggestions for Innago, Stessa, and Rent Redi. Before I start spending time getting to know each application I was curious if there were any other owner/managers that had experience with an online platform they liked? I am ok paying for the service but would like to keep the monthly fee under $100 a month. Thanks in advance for your thoughts and advise!