One calendar on your Mac for every Google account, and Apple's
Koi's calendar for Mac: week or month, reminders in the dock, things added by voice, and Google Calendar from many accounts beside Apple Calendar and Reminders.
Start here
What Apple Calendar does, and where it stops
Calendar comes free with every Mac. Its Mac guide shows events from different accounts, like iCloud or Google, in one place, shares calendars, sends invitations to friends and coworkers, and can show your scheduled reminders beside your events. With iCloud, it's the same calendar on your iPhone.
People look for an alternative when they want to type “lunch with Sam Friday at 1” and be done, a calendar in the menu bar or the notch, tasks in the same view, booking links, or a calendar that adds what was agreed on a call.
We make Koi, so read this with that in mind. Koi is first below because it's ours. Every fact about another app comes from that app's own site, its GitHub page, its App Store listing or Apple's guide, checked November 4, 2026. We didn't run tests.
Keep it
You don't have to leave Apple Calendar
- Koi, Fantastical, Notion Calendar, Morgen and Itsycal read the calendars you already have, so nothing has to move.
- Koi connects Apple Calendar and Apple Reminders after macOS asks, and shows them beside Koi's own and your Google calendars, each event once.
- A change you make in Koi goes to Calendar through macOS, which syncs it to your iPhone as always.
The picks
The best Apple Calendar alternatives for Mac in 2026
1. Koi
Best for: A calendar in the notch that you fill by voice
Koi is an all-in-one Mac assistant, and its calendar is one click from the notch: the week or the month, each thing in its kind's colour. Connect Apple Calendar, Apple Reminders and as many Google accounts as you have, and they sit beside Koi's own. Change them in Koi's editor, attach files, and invite guests from the Google account you pick: Google emails them, and their answers show in Koi.
Say “put the investor call in my calendar for Friday at 3pm New York time” and it's there, at the right time where you are. After a recorded call, Koi offers the dates you agreed on. Reminders come in the notch, with Join for a Google Meet call. A click at the foot of the open notch lists what's still to come today.
Where it loses: Koi's own calendar stays on your Mac, with no iPhone app, so put what you need on your phone in Apple or Google Calendar. No booking links, no weather. It isn't sold on its own: it comes with Koi Pro or Lifetime, after a 3-day free trial (card needed).
2. Fantastical
Best for: Typing events in plain words, on Mac, iPhone, iPad and Windows
Fantastical, by Flexibits, takes events in plain words, like “Lunch with Sarah at 1pm tomorrow”, on Mac, iPhone, iPad and Windows. It has a free version with a simple calendar for the calendars you already have. Premium adds the rest, like scheduling, travel time and Apple Watch, with a 14-day free trial. Flexibits' site shows prices only at checkout; the Mac App Store listing lists Premium as in-app purchases of $6.99 and $56.99. It needs macOS 12.4 or later. More in our Fantastical alternatives.
3. BusyCal
Best for: Tasks in the calendar, and a menu bar mini calendar
BusyCal puts tasks on their due dates in the calendar, carried forward until they're done. It takes events in plain words in ten languages, has a menu bar mini calendar with your busy times, and an 8-day weather forecast. It runs on macOS 12 or later, and on iOS. It's $49.99 from its site, with a 14-day free trial, or in Setapp.
4. Notion Calendar
Best for: Free, with booking links and Notion beside your events
Notion Calendar is free, on Mac, Windows, iPhone and Android. It syncs Google, Outlook and iCloud calendars, joins meetings from the menu bar, shares a booking link with your free times, and shows Notion deadlines beside your events. More in our Notion Calendar alternatives.
5. Morgen
Best for: Planning your tasks into your week
Morgen connects nearly every calendar, Apple Calendar included, and pulls in tasks from Notion, Todoist, Linear, ClickUp and Obsidian. Its AI Planner blocks time for them, and it has booking pages. It's $30 a month, or $15 a month billed yearly, after a 14-day trial with no card; there's no free plan.
6. Itsycal
Best for: A tiny calendar in the menu bar
Itsycal is a tiny menu bar calendar that works with the Mac's Calendar app: it shows and makes events, shows and ticks off reminders, joins virtual meetings and shows ISO week numbers. It's open source under the MIT license, with a download for macOS 11 and later.
Comparison
Apple Calendar vs the alternatives
From each app's own site, GitHub, App Store listing or Apple's guide, checked November 4, 2026. “Not listed” means the page we checked doesn't say.
| Price | Calendars | Tasks or reminders | iPhone | macOS | |
|---|---|---|---|---|---|
| Apple Calendar | Free, built in | iCloud, Google and more | Reminders | Yes | Every Mac |
| Koi | Koi Pro $12 a month, or $99 once | Koi's own, Google, Apple Calendar | Koi's tasks, Apple Reminders | No | 14+ |
| Fantastical | Free; Premium $6.99 or $56.99 in the App Store | The ones you have | Not listed | Yes | 12.4+ |
| BusyCal | $49.99, or Setapp | Not listed | Yes | Yes | 12+ |
| Notion Calendar | Free | Google, Outlook, iCloud | Notion items | Yes | Not listed |
| Morgen | $30 a month, or $15 a month yearly | Nearly all | Notion, Todoist and more | Yes | Not listed |
| Itsycal | Open source (MIT) | The Mac's Calendar | Reminders | No | 11+ |
Honest take
When Apple Calendar is still the better pick
Stay on Apple Calendar if
- You want it free, with nothing to install.
- Your calendar lives on your iPhone as much as your Mac.
- You share calendars with family through iCloud.
- You add a few events a week and want nothing more.
Choosing
Which Apple Calendar alternative should you pick?
- Typing events in plain words? Fantastical.
- Tasks in the calendar, and paying from its own site? BusyCal.
- Free, with booking links? Notion Calendar.
- Your tasks planned into your week? Morgen.
- Just a calendar in the menu bar? Itsycal.
- A calendar in the notch you fill by voice, in an app that also does your dictation, calls and notes? Koi.
Using Google Calendar too? See the best Google Calendar apps for Mac, or Koi's plans.
Keep exploring
The best Google Calendar apps for Mac in 2026
Google makes no Calendar app for Mac. The best options: Notion Calendar (free), Apple Calendar, Fantastical, BusyCal, Morgen, Koi, or Google's site in the Dock.
The best Fantastical alternatives for Mac
Fantastical alternatives for Mac compared: Koi, Apple Calendar, Notion Calendar, BusyCal, Morgen and Vimcal, on price, accounts, booking links and voice.
The best BusyCal alternatives for Mac
BusyCal alternatives for Mac compared: Koi, Fantastical, Apple Calendar, Notion Calendar and Morgen, on price, accounts, reminders on the calendar and voice.
Support
Frequently asked questions
Apple Calendar if you want it free and on your iPhone. Fantastical if you want to type events in plain words. BusyCal for tasks in the calendar, and Notion Calendar for booking links, free.
Notion Calendar is free, with Google, Outlook and iCloud calendars. Fantastical has a free version, and Itsycal is open source under the MIT license.
It doesn't have to. Koi connects Apple Calendar and Reminders and shows them beside its own and your Google calendars; a change you make in Koi goes to Calendar, which syncs it to your iPhone.
No. Koi's own calendar stays on your Mac. Events you keep in Apple or Google Calendar stay on your phone as before.
No, but you can try it: Pro starts with a 3-day free trial (a card is needed), then it's $12 a month, with every feature and unlimited dictation, recordings and teleprompter. Or Lifetime is $99 once. Pro and Lifetime can add Koi credit for more Koi AI.