The best Google Calendar apps for Mac in 2026

Koi is a Mac app for dictation, recording calls and talking to an AI, and it has its own calendar, one click from its dock. Connect Google Calendar from as many accounts as you have, each with its own sign-in, and every calendar shows beside Koi's own, each with a switch. A meeting you're invited to on two accounts shows once. Edits and deletions go straight to Google. Apple Calendar and Apple Reminders connect too, so iCloud's calendars and your reminders with a date sit in the same week.

Add guests and the event goes on Google with a Google Meet link, from the account you pick, and Google emails the invitations. Their answers show in Koi. Files you attach to a Google event go to your Google Drive. Tap Fn + ⌘ and say “put the investor call in my calendar for Friday at 3pm New York time”, and Koi adds it. That's a call with Koi's AI, so it goes online. Google Calendar itself goes only between your Mac and Google, never through Koi's server.

Where it loses: it isn't sold on its own. It comes with Koi, at $20 a month or $192 a year after a 3-day trial that needs a card, or Lifetime from $59. It's Mac only, with no iPhone app, no booking links, and Outlook only through the Mac's Calendar app. Koi's own reminders show in its dock, not in Notification Center. More on Koi's calendar.

Notion Calendar is free, with desktop apps for Mac and Windows and apps for iPhone and Android. Notion says it syncs Google Calendar accounts, Outlook calendars and iCloud calendars, and you can connect several, so work and personal sit together. You can send a scheduling link with your free times, see your day across time zones, and join meetings from the menu bar. If you use Notion, its database items show beside your events, to drag around.

For most people who want a Google Calendar app on the Mac and nothing else, this is the one to try first. It costs nothing, and it connects Outlook directly, which Koi doesn't. Notion says an iPad version is still in progress.

The Mac's own Calendar app is free and already there. Choose Calendar, Add Account, pick Google and sign in, and your Google calendars show beside iCloud's. Apple lists each account you add separately in the sidebar, and it also takes Exchange and other CalDAV accounts. The same accounts on your iPhone and iPad keep everything in step.

The catch is in Google's own help: email notifications for events, creating new Google calendars, and Room Scheduler don't work in Apple Calendar. For those, you still need the website.

Fantastical runs on Mac, iPhone, iPad, Apple Watch, Apple Vision Pro and Windows. It works with iCloud, Google, Exchange, Microsoft 365, Fastmail and other CalDAV accounts. There's a free version, and Premium, for one person, a family of up to five or a team with single sign-on, starts with a 14-day free trial.

Flexibits' pricing page shows the price only at checkout. The Mac App Store lists Premium as in-app purchases of $6.99 and $56.99, and the Mac app needs macOS 12.4 or later (App Store listing).

BusyCal is $49.99 once, or part of Setapp, with a 14-day free trial. It runs on Mac and iPhone and needs macOS 12 or later. Its docs say you add your own accounts, such as iCloud, Google, Office 365 and Fastmail. It has a calendar in the menu bar, events and tasks typed in plain language, weather in the calendar, and to-dos that sit on their due dates until you finish them.

Morgen connects Google Calendar, Outlook and iCloud, with unlimited calendar and task connections on every plan. It runs on Windows, macOS, Linux, phones and the browser. It's $30 a month, or $15 a month billed yearly, after a 14-day trial with no card. There's no free plan.

Open calendar.google.com in Safari and choose File, then Add to Dock. Safari saves it as a web app in your Applications folder, to open from the Dock or Spotlight like any app. It needs macOS Sonoma 14 or later. It's still Google's website, so everything Google Calendar does is there, including what Apple Calendar can't do.