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
Notion Calendar is Cron, renamed
If you're looking for a Cron alternative, you're in the right place. Notion bought Cron in 2022, and in January 2024 Cron became Notion Calendar. The app updated to the new name by itself, so Cron users already have it.
Notion Calendar is free. It runs on Mac and Windows, with apps for iPhone and Android; Notion says the iPad version isn't optimized yet. It connects Google Calendar, Outlook and iCloud calendars, several at once, so work and personal sit together and busy times can block each other. You can share a scheduling link, see your day across time zones, join meetings from the menu bar, and, if you use Notion, drag database items like deadlines around beside your events.
That's a lot for nothing, so most people should stay. We make Koi, so read this with that in mind. Every fact about another app comes from its own site, docs or App Store page, checked October 21, 2026. We didn't run tests.
Why switch
Why people look for a Notion Calendar alternative
- They don't use Notion, so half of what makes it special does nothing for them.
- They want their Apple Reminders on the calendar, as tasks to tick off.
- They want to add, move and tick things off by talking.
- They want something Mac-native, built with the Mac's own calendar in mind.
- They want Apple Watch support or natural-language typing, which Notion's page doesn't mention.
Stay
When Notion Calendar is still the better pick
Stay on Notion Calendar if
- You want it free. Koi has no free plan, and its calendar isn't sold on its own.
- You share scheduling links. Koi has none.
- You use Outlook directly. Koi shows Outlook only through the Mac's Calendar app.
- You use it on Windows or your phone. Koi is Mac only.
- Your projects live in Notion and you want their dates on the calendar.
The list
6 Notion Calendar and Cron alternatives
1. Koi
Best for: Many Google accounts with Apple Calendar and Reminders, and changes by voice
Koi is a Mac app with its own calendar, one click from its dock. Like Notion Calendar, it takes as many Google accounts as you have, each with its own sign-in, and shows a meeting that's on two of them once. Unlike it, it connects Apple Calendar and Apple Reminders through macOS, so every reminder with a date shows as a task you can tick off in Koi.
Tap Fn + ⌘ and say “remind me to call mum at six” or “move my dentist to Thursday”, and Koi does it. Ask “what's on today?” and it answers from all of them. That's a call with Koi's AI, so it's online, and changing your Google or Apple calendars by voice needs “Let Koi use my Mac for me” on. Invite guests and the event goes on Google with a Meet link, and Google emails the invitations.
Where it loses: no scheduling links, no Outlook connection of its own, no Windows or phone, and it costs money. It comes with Koi, at $20 a month or $192 a year after a 3-day trial, or Lifetime from $59 once.
2. Apple Calendar
Best for: Nothing to install
Free and built in. Choose Calendar, Add Account, and add iCloud, Google or any CalDAV account; the same accounts on your iPhone keep it all in step. No scheduling links. Google says email notifications for events, creating new Google calendars and Room Scheduler don't work there (Google's help).
3. Fantastical
Best for: One polished calendar on every Apple device
Fantastical works with Google, Microsoft 365, Exchange, iCloud, Todoist and CalDAV, on Mac, iPhone, iPad, Apple Watch, Vision Pro and Windows. You type events in plain language, and Premium adds Openings for booking links and Proposals. There's a free version; the Mac App Store lists Premium at $6.99 and $56.99. See our Fantastical alternatives.
4. Vimcal
Best for: The closest feel to Cron: fast, with shortcuts for everything
Vimcal syncs Google Calendar and Outlook, with a Mac and PC desktop app, a Mac menu bar app and a web version. Free is its iOS app only; iOS and Desktop is $35 a month, or $25 a month billed yearly. It doesn't mention iCloud.
5. Morgen
Best for: Calendars and tasks from many apps, planned together
Morgen connects Google, Outlook, iCloud and CalDAV, brings in tasks from Notion, Todoist, Linear and more, and plans your day with an AI Planner. It has booking links. $30 a month, or $15 a month billed yearly, after a 14-day trial with no card. See our Morgen alternatives.
6. BusyCal
Best for: A Mac calendar you pay for once
BusyCal is $49.99 from BusyMac, a license that never expires with 18 months of updates, or part of Setapp. Menu bar calendar, plain-language entry, weather, travel time and to-dos synced with Reminders, on Mac and iPhone. More in our BusyCal alternatives.
Comparison
Notion Calendar alternatives compared
From each app's own site or App Store page, checked October 21, 2026. “Connects” is what each names.
| Koi | Notion Calendar | Apple Calendar | Fantastical | Vimcal | |
|---|---|---|---|---|---|
| Price | Comes with Koi: $20 a month, Lifetime from $59 | Free | Free | Free version; Premium in-app | Free on iOS; $35 a month for desktop |
| Connects | Many Google accounts, Apple Calendar and Reminders | Google, Outlook, iCloud | iCloud, Google, CalDAV | Google, Microsoft 365, Exchange, iCloud, CalDAV | Google, Outlook |
| Runs on | Mac | Mac, Windows, iPhone, Android | Mac, iPhone, iPad | Apple devices and Windows | Mac, PC, web, iPhone |
| Sharing free times | No | Scheduling links | No | Openings, Premium | Availability sharing |
| Reminders and tasks | Apple Reminders and Koi tasks | Notion database items | Separate Reminders app | Tasks and Todoist | Not listed |
| Add by voice | Yes, on a call with Koi | Not listed | Not in the app | Not listed | Not listed |
How to
How to see Google, iCloud and Reminders together in Koi
- Open Koi's Settings and choose Connections.
- Connect Google Calendar and sign in. Choose Add another account for each other Google account.
- Connect Apple Calendar, then Apple Reminders, and allow each when macOS asks. iCloud's calendars come with Apple Calendar.
- Click Calendar on Koi's dock. Use the switches beside each calendar to show or hide it.
A Google event that's also in the Mac's Calendar, because you added the same Google account there, shows once. Calendar and Reminders keep alerting as usual and Koi's dock doesn't, so nothing alerts twice. More on Koi's calendar.
Head to head
Notion Calendar vs Koi
- Price: Notion Calendar is free. Koi's calendar comes with a paid plan.
- Accounts: both take several Google accounts. Notion Calendar adds Outlook and iCloud directly. Koi adds Apple Calendar, which brings iCloud and any account on your Mac, and Apple Reminders.
- Tasks: Notion Calendar shows Notion database items. Koi shows your Reminders, and its own tasks in gold.
- Scheduling: Notion Calendar shares booking links. Koi invites guests through Google with a Meet link.
- Voice: Notion Calendar has none. Koi adds, moves and ticks off things when you ask.
- Devices: Notion Calendar is on Mac, Windows, iPhone and Android. Koi is one Mac.
Privacy
Where your events go
In Koi, Google Calendar goes only between your Mac and Google, never through our server, and each Google sign-in is kept in your Mac's Keychain. Apple Calendar and Reminders are read on your Mac through macOS. Events from both are held in memory while Koi runs and aren't written to Koi's database. Koi's own calendar stays on your Mac.
Our server sees your events only when you ask Koi about them on a call: a question about your day sends that day's events along with it, and they're kept nowhere.
Choosing
Which Notion Calendar alternative should you pick?
- Free, scheduling links, Windows and phone? Stay on Notion Calendar.
- Nothing to install? Apple Calendar.
- Every Apple device and plain-language typing? Fantastical.
- Cron's speed, with Google and Outlook? Vimcal.
- Tasks from many apps, planned into your day? Morgen.
- Pay once? BusyCal.
- Google accounts, Apple Calendar and Reminders on a Mac, changed by voice? Koi.
See our list of the best Google Calendar apps for Mac, what else Koi's assistant does, or the plans.
Keep exploring
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 Morgen alternatives in 2026
Morgen alternatives compared: Koi, Akiflow, Notion Calendar, Fantastical, Vimcal and Apple Calendar, on price, task apps, AI planning, booking links and Mac.
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.
Support
Frequently asked questions
Notion bought Cron in 2022 and renamed it Notion Calendar in January 2024. The app updated to the new name by itself.
Yes. Notion says it connects Google Calendar, Outlook and Apple iCloud calendars, and several at once.
Notion's page doesn't mention Reminders; it shows Notion database items beside your events. Koi and BusyCal put reminders on the calendar.
Koi connects Apple Calendar and Apple Reminders through macOS, beside as many Google accounts as you have, and reminders with a date show as tasks you tick off.
Notion Calendar is Cron, renamed. For something similar from another company, Vimcal calls itself the world's fastest calendar, with shortcuts for everything, for Google and Outlook.