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Best Calendar App for Mac and iOS

The best calendar app depends on how you plan, so this page compares BusyCal with Fantastical, Outlook Calendar, Apple Calendar, Google Calendar, Notion Calendar, and Readdle Calendars on Mac and iOS. BusyCal is the one to look at first if you want several calendar accounts in one window, deep filtering and view control, tasks alongside events, and a one-time purchase rather than a subscription. Start with these questions:

  • Do you plan with calendar blocks, task lists, or both?
  • Do you need one app across iCloud, Google, Exchange, and CalDAV?
  • Do you want deep customization or just solid defaults?
  • Does one-time purchase vs subscription matter to you?

Below you'll find head-to-head BusyCal comparisons, a feature breakdown, and links to every app's official page.

Last reviewed: April 28, 2026.

Comparison Pages​

What Sets BusyCal Apart​

  • Working Hours toggle: One-click to collapse non-work hours in Day and Week views.
  • Sunrise & sunset shading: Visual light/dark bands in Day and Week views.
  • Context menu event alignment: Match Start/End, Create Between, Create After — fast gap-filling.
  • Nested Smart Filters (ALL/ANY/NONE): Reusable rule groups for complex filtering.
  • Calendar Sets + Rules + View State in One Preset: Context switching and filtering saved together.
  • Flexible Week View (2–90 days): Custom spans from a 2-day view to a full quarterly view.
  • Multiple time zones in the time ruler: Up to 3 zones displayed simultaneously.
  • Weather forecasts & moon phases: Built into calendar views.
  • Travel time with live traffic: Time to Leave alarms that update based on real-time conditions.
  • Colored tags with auto-coloring and rules: Color-coded tags with automatic tagging on sync, per-account rules.
  • Conference call integration: One-click Zoom and Teams meeting creation from inside events.
  • Task sorting, filtering, and grouping: Sort by due date, priority, title, calendar, tag, or manual order.
  • Configurable defaults: Auto alarms per event/task type, auto travel time, default duration, priority, floating time zone.
  • Live countdown to next event: "Meeting in 23 minutes" right in your menu bar — always know what's coming without opening the app.
  • Automation: Full AppleScript scripting, an official Claude Desktop / MCP integration, and a Raycast extension — more automation depth than any competing calendar app.

Official Calendar Product Pages​

Get Started with BusyCal​

Want to compare a few more options before deciding? Browse all BusyCal comparison guides.