Does anyone else's kid actually use educational apps or is it just us?

We've been using Khan Academy Kids with my 5yo for morning math and it's genuinely been helpful. She actually loves it (or at least asks for it more than I'd expect). Most parents I know are like 'yeah right, my kid would never' when I mention it. Am I lucky or is there something about how we set it up? What educational apps have actually stuck around in your house?