I’ve been experimenting with menu bar calendar apps over the past few weeks after realizing how much friction exists in my daily workflow. Every time I need to check my schedule, I’m opening Calendar.app, waiting for the window to appear, and clicking through to find what I need. This happens dozens of times per day when coordinating across multiple ongoing projects.
The macOS menu bar shows the current date and time, but clicking it does nothing. It’s a missed opportunity that third-party developers have addressed with apps ranging from ultra-minimalist single-day views to comprehensive calendar replacements with natural language event creation.
The Simplest Option: Today
Today ($0) takes an extreme minimalist approach by showing only current-day events. Developer Sindre Sorhus describes it as “an experiment to make the simplest calendar app possible,” and that philosophy shows.
The app displays a clean dropdown with your schedule for today and nothing else. It automatically detects video call links, enabling one-click joining for Zoom, Teams, or Meet without hunting through event descriptions. Clicking any event opens it in your preferred calendar app.
This focused approach works well if you live primarily in the present day. Setup takes seconds since it reads directly from Calendar.app without additional account linking. For users needing to see upcoming days or weeks, the single-day limitation becomes restrictive quickly.
A Step Up: Menu Bar Calendar
Menu Bar Calendar ($0) adds month-view navigation while maintaining simplicity. Clicking the icon displays an instant calendar grid with the current day highlighted. Arrow keys navigate between months, while Option+arrow keys jump entire years.
The keyboard navigation is excellent for quick date checking during scheduling conversations. Clicking any date opens either Calendar.app or Google Calendar, and right-click options provide quick event creation. Week number display supports both ISO 8601 and Gregorian formats.
Also from Sindre Sorhus, this app deliberately focuses on viewing rather than management. There’s no event list, appointment preview, or inline creation. The developer directs users needing advanced features to his Dato app, which I covered previously in my time zone tools article.
The app requires macOS 15, though legacy versions support older systems. Resource usage sits around 40MB with negligible CPU consumption.
Open-Source Alternative: Calendr
Calendr ($0, open-source) provides the middle ground between simplicity and features. The interface displays a monthly calendar grid alongside a compact agenda view showing upcoming events with color-coded time blocks.
The app integrates with iCloud, Google Calendar, and Notion Calendar. Clicking events reveals options to open them directly or set quick reminders at standard intervals. The agenda view displays time remaining until your next appointment, providing at-a-glance schedule awareness.
Built in Swift using RxSwift, the codebase is MIT licensed for inspection and community contributions. Development remains active with version 1.17.2 improving upcoming event display to show events within 30 minutes rather than only current ones.
Installation options include direct download from GitHub releases or Homebrew (brew install --cask calendr). The feature set is intentionally minimal compared to premium alternatives, focusing on quick schedule viewing rather than comprehensive management.
The Comprehensive Option: Calendar 366
Calendar 366 (30-day trial, paid) replaces the system clock entirely with a customizable date display. Clicking reveals a complete calendar interface with natural language event creation, multi-calendar support, and extensive view options.
The natural language system allows typing phrases like “lunch with Sarah tomorrow at 1pm” to create events without forms. Eight calendar views (month, week, agenda, and others) and nine visual themes provide extensive customization.
Multi-calendar integration covers iCloud, Google Calendar, Exchange, Outlook, and CalDAV services. Calendar sets enable organizing different groups—work, personal, team schedules—for simultaneous viewing without constant source switching.
Ten widgets integrate with notification center and desktop. Additional integrations include Spotlight search via “C366” keyword, Touch Bar support, and Alfred/LaunchBar workflows for launcher-based actions.
The extensive feature set requires configuration time. Natural language parsing occasionally misinterprets complex phrases, and the customizable menu bar display may require reorganization if you have a crowded menu bar already. Approximately 80MB memory and 1% CPU during normal operation.
Choosing the Right Approach
The choice depends on how you interact with your schedule. For quick “what’s happening today” checks, Today provides instant answers without visual noise. For date reference during planning conversations, Menu Bar Calendar offers fast navigation with keyboard shortcuts. Users wanting event context alongside calendar grids will appreciate Calendr’s agenda view. Those managing complex scheduling across multiple sources may justify Calendar 366’s comprehensive features.
I’ve settled on Calendr for now because the agenda view showing time-until-next-event matches my workflow needs without the configuration overhead of Calendar 366. The open-source nature and active development provide confidence in long-term sustainability.
All four apps address the core problem of reducing friction in schedule access. The difference lies in how much additional functionality you want alongside that basic viewing capability.