Connecting with tenants

[Jason Keith]

Hi all. Curious to know what online tools or apps people are using to communicate with tenants? A tenant recently told me about Rentigo, which lets landlords connect directly with their tenants to do things like collect rent and handle maintenance requests online. My tenant asked me if I'd sign up so they can use the app to pay their rent and get in touch about any issues that come up. I love the idea of managing my rental properties from my smartphone and I understand the app is completely free for an unlimited number of units. What's the catch?  Curious to know if anyone has had any experience with this or any of the other tools out there? Thanks!