[brndn]

I agree with you, but I still think they could benefit from at least having an app that loads their website. Craigslist is represented in app-stores by unofficial 3rd party apps that aren't very good. Users may have bad experiences with those apps, which Craigslist may want to prevent or control.

Some people might think (incorrectly) that their lack of presence in app stores means the company isn't focused on mobile or that their platform is not intended to be used on mobile.

There are benefits to having a mobile app over just a mobile website, such as mobile notifications, consistent/better authentication, being featured on users' home screens (next to LetGo, OfferUp, etc.) instead of hidden away in a web browser app. I would think that Craigslist would find their users to be more engaged with an app.