Android client Harmonic HN is built for Hacker News and has its source hosted on GitHub.
ZCombinator
Gem lets users read Hacker News through a client built with SwiftUI; its source code is hosted on GitHub.

About ZCombinator
ZCombinator, listed as Gem for Hacker News, is an open-source Hacker News client built with SwiftUI, with source code hosted on GitHub. It supports logging in with a Hacker News account to reply, vote, flag and sync favorites, along with search, thread translation, offline mode, reply notifications, Home Screen and Lock Screen widgets, and thread tools for in-thread search, new-comment highlighting and viewing ancestor comments.
Key features
- Log in with Hacker News account
- Reply, vote, or flag threads
- Translate discussion threads
- Read in offline mode
- Receive notifications on new replies
- View ancestor comments with Time Machine
- Source code hosted on GitHub
- Licensed under GPL-3.0
ZCombinator at a glance
- Category
- News & Media › News Aggregators
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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