HKG is the official app of Hong Kong's most representative discussion forum, HKGolden. With a new user interface design and support for multiple display themes, HKG is committed to providing users with a comprehensive experience. Basic functions such as browsing posts, turning pages, logging in, and refreshing are available. Users can also publish posts and replies, with support for saving drafts and previews. Notifications for popular posts, new replies, and private messages are available. HKG offers three types of title list display styles, four color themes, and adjustable font sizes for titles and text. Users can also browse and send private messages, block or unblock users, search for posts and authors, and view image libraries. HKG also introduces new features, including a positive/negative rating system, fake title mode, incognito mode, and more.

HKG is available for free on the Android platform, developed by Alive Media Communications Ltd. The app is a combination of culture and trend, providing users with a comprehensive experience of computer knowledge, current events, entertainment, anime, games, sports, and more.