Sources seem to be pretty consistent in saying that on average, native app users are significantly more profitable for companies than web users. While I'm sure that's partially because the most dedicated users of a given service are the most likely to install the native app, an app does afford more opportunity to collect data about the user and to attempt to grab the user's attention.

As a user, I strongly prefer websites for this sort of thing. I'll pay attention when it suits me, not when the service wants me to. It does explain why Patreon wants to have an app though.