Boreal - A Hacker News iOS app
Reddit List - Tracking the top 5000 subreddits
Box Piper Hacker News - Re-Imagined Hacker News for this decade.
Reddit Check - A tool to check if a URL is on Reddit and going viral
HackerScroll - Read top articles from HackerNews in a clean, simple and minimal interface without ads or any other distractions.
Suggest Subreddit - Recommends you subreddits based on your subscriptions