LunarBar

LunarBar is a minimalist calendar that lives in the macOS menu bar, displaying the lunar calendar alongside public holidays, system calendar events, and reminders. It runs as a sandboxed, signed, and notarized application, supporting macOS 15.0 and newer while also offering historic builds for earlier versions. Users can install it via a downloadable DMG or through Homebrew, and the app checks for updates automatically or on demand.

The tool targets macOS users who need quick reference to lunar dates and holidays without opening a full‑featured calendar. Its design emphasizes simplicity, presenting essential date information in a compact menu‑bar widget that fits a streamlined workflow.

Being completely free and open source, LunarBar can be examined and modified by developers, and its development details are documented in the repository. The project does not provide a feedback channel, directing users to the wiki for common questions.