I assume the free version is meant to be used as a trial to evaluate the quality of the client. There is a “Share HN Link” option for each comment where you can

I assume the free version is meant to be used as a trial to evaluate the quality of the client. There is a “Share HN Link” option for each comment where you can comment on the webpage. After using it for free for a year or so, I paid because it’s one of my favorite clients on iOS.