Welcome to CalendarBridge

What is CalendarBridge?

CalendarBridge keeps multiple calendars in sync, automatically. When something is booked on your work calendar, a private placeholder shows up on your personal calendar — and vice versa — so you stop double-booking yourself across accounts you can’t merge.

You can also share a single scheduling link that respects every calendar at once, and let the AI Assistant draft replies and propose times based on your real availability.

Before you begin

Have these ready before you start — it makes the rest of the walkthrough painless:

• The login credentials for at least two calendars you want to keep in sync (Google, Microsoft 365 / Outlook, or iCloud).
• Permission to grant calendar access on those accounts. If you’re on a managed work account, your IT admin may need to approve CalendarBridge once.
• A modern browser — Chrome 110+, Edge 110+, Firefox 110+, or Safari 16+.

Step 1 — Create your account

1. Sign up at calendarbridge.com

   Use the email address you check most. This becomes your login and is where account notifications are sent. Signing up with Google or Microsoft also pre-connects that calendar in Step 2.

2. Verify your email

   We send a six-digit code. Paste it on the next screen. If you don’t see the email after a minute, check spam and add noreply@calendarbridge.com to your contacts.

3. Pick your time zone

   This sets the default for events you create inside CalendarBridge. You can override it per-sync later if you travel often.

Step 2 — Connect your calendars

From the home screen, open My Accounts in the left navigation and click Add calendar account. Choose your provider and complete the OAuth prompt in the popup.

What we ask for, and why

• Read events: so we know your free/busy windows.
• Create & update events: so we can write the synced placeholder events.
• Read calendar list: so you can pick which calendars on the account participate.

We don’t request mail, contacts, or file access. You can review and revoke permissions any time from your provider’s account settings.

Repeat the process for every account you want to sync — most users connect two, but the Pro plan supports up to ten.

Step 3 — Set up your first sync

A sync is a one-way or two-way relationship between two calendars. Think of it as a rule: “whenever an event lands on Calendar A, mirror a placeholder on Calendar B.”

1. Go to Manage Syncs

   Click Syncs in the left rail. At the top of the page you’ll see two buttons: Create One Way Sync and Sync Multiple Calendars Both Directions. Pick the one that matches the relationship you want.

2. Choose your sync type

   Create One Way Sync mirrors events from a single source calendar onto a single destination calendar. Use this when you only need busy times to flow one direction — for example, work events showing up on a personal calendar.

   Sync Multiple Calendars Both Directions sets up a two-way relationship across two or more calendars at once, so each calendar reflects every other calendar’s busy times. Use this when you want every calendar in the group to stay in lockstep.

   If you’re unsure, start with Sync Multiple Calendars Both Directions — it matches what most people want, and you can edit or split it later.

3. Pick the calendars

   For a one-way sync, choose the source (where real events live) and the destination (where placeholders should appear). For a both-directions sync, select every calendar that should participate in the group.

4. Set privacy level

   Choose how much detail copies onto the other calendar(s). Busy block shows only “Busy.” Title only copies the event title. Full event includes title, location, and description.

5. Save and run the first sync

   CalendarBridge backfills 30 days into the past and 365 days into the future on save. Larger backfills are available on Pro.

Step 4 — Verify everything is working

Open both calendars side-by-side and confirm:

• An event you create on the source shows up on the destination within a few seconds.
• The placeholder respects your privacy setting (e.g. shows “Busy” if you chose busy-block).
• Cancelling the source event removes the placeholder.

If anything looks off, the Sync activity log at the bottom of the sync detail page shows every action with a timestamp — usually enough to spot the issue. The Troubleshooting syncs guide covers the rest.

Next steps

You’re set up. Here’s what most people do next:

• View your unified calendar that shows you one single clean calendar of all your calendars together.
• Create a scheduling link that sees all of your connected calendars at once.
• Install the mobile app so you can review and edit synced events on the go.
• Turn on the AI Assistant to draft replies that respect your real availability.