I'm a heavy app user and imho that's a myth, because people end up being naturally biased towards the platform they've been using, once they learn about what's good or not.

And even if I can feel my own bias, I really think Android is the more polished one, OS & apps. I could enumerate all sorts of reasons for why, but then you'd hand-wave it as not being relevant for moms using apps that could have been web pages :-)