Every Calendar in Sync.
Every Booking Conflict-Free.
Real-time sync across your Google and Microsoft calendars. One unified calendar to create, edit, and manage every event — meeting links included. Booking pages that only offer times you're truly free.
Works With Your Calendars
Sync across Google and Microsoft — personal and work accounts supported
One platform. Every scale.
From a solo professional to organizations syncing across Microsoft 365 tenants — Calendox has an account type built for you.
Personal
Your calendars, in sync — always.
Ideal for anyone juggling a work Outlook and a personal Gmail. Book in one, visible in both — no manual copying, no missed conflicts.
- Connect Google & Microsoft accounts
- Real-time one-way or multi-way sync
- Automatic conflict visibility
- Up to 25 syncs on the Premium plan
Business
Admins assign seats. Everyone syncs.
Admins manage the team's subscription, invite members and assign each one a license. Every licensed member connects their own calendars and runs their own syncs within that license's plan limits.
- Centralized team subscription
- Invite & manage team members
- Per-seat license assignment
Enterprise
Tenant-to-tenant sync. No user sign-ins.
Sync calendars between two or more Microsoft 365 tenants. Each tenant's administrator grants consent once, so the people whose calendars you import never sign in — bulk-import their calendars and manage every tenant from one dashboard.
- Microsoft Entra admin consent, once per tenant
- Auto-pairing by email username and calendar name
- Bulk calendar import via CSV
- Master-tenant calendars free and unlimited
- One seat per imported secondary-tenant calendar
Pricing & Plans
Choose the perfect plan for your calendar management needs. All plans include our core sync functionality with no hidden fees.
Perfect for individuals getting started
per user / month · billed annually ($48/yr)
Ideal for Advanced Users
per user / month · billed annually ($84/yr)
Top features for professionals
per user / month · billed annually ($204/yr)
Per imported secondary-tenant calendar. Built for organizations that sync calendars between two or more Microsoft 365 tenants.
Effective monthly
billed annually · $27.60/calendar/yr
Starts with a 14-day free trial — up to 5 imported secondary-tenant calendars in total across all tenants. Then billed per imported secondary-tenant calendar.
Additional taxes may apply based on your country. All prices in USD.
Calendox is also available on Microsoft Marketplace.
Why Choose Calendox?
Sync Google and Microsoft calendars automatically to keep availability accurate and reduce double bookings.
Calendar Sync
Real-time sync between any of your Google and Microsoft calendars.
Keep any of your Google and Microsoft calendars perfectly in sync — automatically, in real time. Create one-way or multi-way syncs between any combination of accounts and let Calendox handle the rest.
Learn More about Calendar SyncTeam Management
Centralized subscription and seat management for teams.
Run your team's calendar access from one Business Account. The admin manages the subscription, controls seats, invites members, and assigns licenses — so everyone on the team can sync without worrying about billing.
Learn More about Team ManagementEnterprise Sync
Microsoft 365 calendar sync between tenants, with no per-user sign-in.
Sync calendars between your Microsoft 365 tenant and partner, contractor or subsidiary tenants without any user action. One admin consent per tenant, bulk calendar import, and everything managed centrally.
Learn More about Enterprise SyncUnified Calendar
All your calendars in one view with full event management.
All your Google and Microsoft calendars in one view. Create events, manage your schedule, and start meetings — without switching between apps or calendar providers.
Learn More about Unified CalendarBookings
Booking pages with availability checked across your connected calendars.
Create a booking page and share your availability with a single scheduling link — Calendox checks free/busy time across your connected Google and Outlook calendars (all of them by default, or only the ones you choose), and each confirmed booking lands as a real event on the calendar you choose.
Learn More about BookingsCommitment to Your Privacy and Security
Your calendar data is yours alone—we're simply the bridge that keeps your scheduling seamless, and we take the security and privacy of that data seriously
Frequently Asked Questions
What is Calendox?
Calendox is a calendar sync and scheduling platform for Google and Microsoft calendars. It keeps any combination of your calendars in sync in real time, lets you create and manage events across all your accounts from one unified calendar, and publishes booking pages that only offer times when your connected calendars are free.
Which calendar providers does Calendox support?
Calendox connects Google Calendar and Microsoft Outlook calendars — both personal Microsoft accounts and work or school Microsoft 365 accounts (Exchange Online). You can sync between any combination of these two providers — Google to Google, Microsoft to Microsoft, or cross-provider in either direction.
What is the difference between one-way and multi-way sync?
With one-way sync, events from your source calendar are copied to one or more target calendars — changes on the source flow out, but targets stay read-only from the sync's perspective. Multi-way sync keeps all connected calendars in lockstep: an event created or changed in any participant calendar is reflected in all others.
How quickly do changes sync after I update an event?
Within seconds. Google and Microsoft notify Calendox the moment an event changes, so there's no polling schedule to wait on, and Calendox then applies the change to all connected target calendars.
Will synced events create infinite loops or duplicates?
No. Every event Calendox creates is tagged with internal sync metadata, and the sync engine checks that metadata before processing any incoming change — so events Calendox created are never synced back again. An independent second guard also detects events already mirrored between your calendars by another sync tool, preventing loops even when multiple services are active.
Can the same calendar be part of multiple syncs?
No. Each calendar can belong to only one sync at a time, and syncs in every status count, including Disabled and Failed ones. Calendars that are already in a sync are marked as such and can't be added to a new one. To move a calendar to a new sync, delete its current sync first; deleting a sync also cleans up the copies it created.
What happens if my subscription expires or payment fails?
When your trial or subscription ends, active syncs are paused automatically. If a card renewal payment fails, you get a 3-day grace period during which your plan and syncs keep running; syncs are paused only if the payment isn't recovered within those 3 days. Events already synced remain in your target calendars untouched, and once you subscribe again or the payment succeeds, syncs resume and catch up from where they left off.
Can I use Calendox for my whole team or company?
Yes. A Business account puts your team under one subscription: admins invite members and assign each one a per-seat license, and every licensed member connects their own calendars and runs their own syncs within that license's plan limits. Enterprise is a separate account type for syncing calendars between two or more Microsoft 365 tenants: each tenant's administrator grants consent once for the whole organization, so employees never have to sign in or authorize access individually.
How many calendars can I connect?
It depends on your plan. Basic supports 2 calendar connections, Standard supports 5, and Premium supports up to 25 — each calendar you import counts as one connection, while connecting a provider account doesn't count by itself. On a Business account these limits apply per member, based on the plan of the license each member holds. Enterprise is priced per seat instead: each calendar imported from a secondary tenant takes one seat, while calendars from your master tenant are free. You can see the full breakdown on the Pricing page.
Can people book time with me through Calendox?
Yes. Bookings lets you publish booking pages — public scheduling pages where anyone can book time with you. Availability is checked live across your connected Google and Microsoft calendars (all of them by default), and each confirmed booking is created as a real event on a calendar you choose. Basic includes 2 booking pages; Standard and Premium include unlimited pages.
Do bookers need a Calendox account?
No. Anyone with your booking link can pick a slot and book — no signup required. Visitors only ever see your open time slots, never event titles, attendees, or any other calendar details.