Matter user here. I love the app, currently on the paid plan.
It has some nice bells and whistles (reading articles to you, highlights, etc) but it does the core job of saving articles for reading really well.
I’m not a pocket user so it may or may not be a good substitute but worth trying. I wish Matter worked on the kobo but there’s no API AFAIK (they do have a few of their own integrations with Obsidian and Readwise).