playdates app?

Kasey • I'm 29, bi, married. I wrote here at 25, we talked about family and would be TTC by now but he’s not ready (34 yrs old).
I may be building an app to help parents find play dates for their children, with other local children with similar interests.
How do you usually help your kids to set up play dates, or meet new friends..? Would you find an app useful - if so, what should be included, if not - why not?
Thanks! :)