It certainly looks like Flow XO fills a need, but how does it differ from IFTT? I'm familiar with the concept of IFTT, but have never used it.
We also have this feature called 'Forms'. That allows someone to start a workflow when a new person is added to their CRM, send that person a form to check existing info or add new details, and then add that to the record in the CRM. Or even create something else, such as a deal at that stage.