Best tools
Most Mac calendar apps can show several accounts in one view. Far fewer stop those calendars from double-booking you, or give you a booking link that checks all of them. This list compares six apps on what matters when you juggle work, client and personal calendars, plus a free add-on for the app you already use. Meetingpad's founder wrote it, so every other app's details come from its maker's own website.
Meetingpad isn't a calendar app. It works alongside Apple Calendar, Fantastical or any app on this list: a meeting on one calendar blocks the time on the others, and your booking links only offer times you're free everywhere.
Skip it if you use iCloud calendars.
Apple Calendar shows all your accounts in one place and syncs to your other Apple devices. It doesn't block time across calendars or offer booking links.
Skip it if you need either; pair it with an add-on instead.
Fantastical unifies all your calendars into a single view, and its Openings booking links can check all your calendars. When you create an event in the app, it can block off time on multiple calendars too.
Premium prices load on Flexibits' pricing page, so check them there.
BusyCal is a long-standing Mac calendar with booking pages that can include both work and personal calendars to avoid conflicts. BusyMac says to keep BusyCal running on a Mac so your busy times stay up to date.
Skip it if you want a Windows app; we found none.
Notion Calendar can auto-block busy slots across all your calendars and share scheduling links, and it runs on Mac, Windows, iPhone, Android and the web.
Skip it if you'd rather keep the calendar app you have.
Outlook for Mac can add your Google account next to your Microsoft ones, and can stack calendars in an overlay view so you can see availability across them.
We couldn't confirm blocking or booking links that check all calendars.
Morgen plans your day with AI, can sync events from one calendar to another to avoid double bookings, and runs on Windows, Mac, Linux, the web and mobile.
Skip it if you don't want a subscription.
Yes. Add each account under Calendar, then Add Account. It shows them together but doesn't stop double bookings between them.
Notion Calendar and Morgen can block or sync busy time across calendars, and Fantastical can block off time on multiple calendars when you create an event. Meetingpad adds automatic blocking to whatever app you use, for free.
Notion Calendar is free and includes scheduling links. Meetingpad is free and gives every calendar its own booking link that checks all of them.
Meetingpad's founder wrote it. Every other app's details come from its maker's own website or help pages and are linked below.
Connect every Google and Microsoft calendar for free. A meeting on one blocks the time on the others, and your booking links only offer times you're free.
