LunarBar
LunarBar is a free, open-source email and calendar app for macOS. A compact lunar calendar for your macOS menu bar. It has 1,508 GitHub stars and is released under the MIT license. Its source code is on GitHub at LunarBar-app/LunarBar.
github.com/LunarBar-app/LunarBar (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About LunarBar
从 latest release 获取 LunarBar.dmg,打开后将 LunarBar.app 拖拽至 Applications 即可。 LunarBar 会自动检查更新,你也可以在应用内手动检查更新,或者在 releases 页面浏览历史版本。
Install LunarBar
Package names found in the project's README. Each links to its package page so you can check the publisher first.
brew install --cask lunarbarSimilar apps
More open-source email clients
Wino Mail
bkaankose/Wino-Mail
Built-in Mail & Calendars app clone for Windows.
Active · last commit Oct 28, 2026
Email & calendarWindowsFeed Flow
prof18/feed-flow
FeedFlow is a minimalistic RSS Reader available on Android, iOS, macOS, Windows and Linux.
Active · last commit Oct 27, 2026
Email & calendarWindowsmacOSLinuxMail
flectar/mail
Built from the ground up for speed. Flectar Mail delivers native performance, instant startup, and as little as 80 MB of RAM.
Too new to judge · created Sep 3, 2026
OfficialEmail & calendarWindowsmacOSLinuxPapr
l0ng-ai/papr
A fast, native RSS reader — plus an agent-facing CLI so your AI agent can read, search and triage your feeds from the shell.
Active · last commit Sep 23, 2026
Email & calendarWindowsmacOSLinuxLettura
zhanglun/lettura
Lettura Follow your favorite content and never miss a story.
Active · last commit Oct 11, 2026
Email & calendarWindowsmacOSLinuxThunderbird
thunderbird/thunderbird-desktop
The official repository for the Thunderbird desktop email client.
Maintained · last commit Oct 28, 2026
OfficialEmail & calendarWindowsmacOSLinux
Is LunarBar free and open source?
Yes. LunarBar's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install LunarBar?
Homebrew: brew install --cask lunarbar. The commands are on this page. Installers are also on its GitHub Releases page (latest: v1.10.0).
Is LunarBar still maintained?
The repository's most recent commit was on Oct 26, 2026. appsgit only lists apps whose repository had a commit in the last six months.