YAHN is described as 'Yet another hacker news reader with offline mode. Features: Offline mode by default. Means the client will download everything, including news feed, posts and comments. Then you'll be able to read everything offline. Like while in subway' and is an app in the News & Books category. There are seven alternatives to YAHN for a variety of platforms, including Hacker News, Online / Web-based, Android, iPhone and Android Tablet. The best alternative is Nomocle, which is free. Other great apps like YAHN are HN - Hacker News Reader (Free, Open Source), HNBuddy - Hackernews client for iOS (Free), HNClient (Free, Open Source) and Yarn (Free).
Different from typical Hacker News readers, Nomocle lets you create or follow dashboards to monitor specific topics of interest. It provides an easy way to get to the content you want to keep an eye on.
Comfortably read Hacker News without having to open an endless amount of tabs anymore. You can choose articles to view from a sidebar and can optionally read articles and their comments next to each other on a split screen.
Octal is a full-featured Hacker News client built with an eye for design and usability. Octal has all the features you'd expect from a Hacker News app, including the ability to sign in to your Hacker News account, post comments and upvote.