1.82M+ events in sync

All your calendars,
always in sync.

Sync Google Calendar, Outlook, Apple Calendar/iCloud and CalDAV. Personal plans, family time and work meetings stay aligned — while others see only “Busy”.

Free forever · No credit card · Works with all major calendars

Private by default Your availability syncs. Your details don't.
Your manager sees Busy. Nothing more. Your work calendar stays accurate.
Your private life Stays completely yours. Titles, notes, guests and locations stay private.
Works with: Google Calendar Outlook iCloud Fastmail Nextcloud CalDAV
GGoogle Calendar
9 AM
Therapy
11
Dentist appt
2
Gym class
5
Family dinner
Outlook
9 AM
Busy
10
Team standup
1
Design review
3
Client call
Apple Calendar
9 AM
Busy
12
Lunch
3
Project time
6
Family dinner
~29 min
saved per user, per week
675+
people syncing
1.82M+
events in sync
~4.3 sec
average sync speed

Sync the calendars you already use.

Connect Google Calendar, Outlook and Apple Calendar. Caledaro keeps them aligned while private events appear only as “Busy”.

Caledaro calendar sync dashboard showing Google Calendar syncing private busy blocks to Outlook and Apple Calendar

Set up calendar sync in 60 seconds

A calendar sync app without configuration files or scripts: connect your accounts, choose a direction, and let CALEDARO keep them aligned.

1

Connect your accounts

Sign in and add your work and personal calendars. Google Calendar and Outlook use OAuth — we never see your password.

2

Choose what to sync

Pick calendars, set one-way or two-way calendar sync, and configure privacy. Personal events show as "Busy" by default — colleagues see nothing more.

3

Done — it's automatic

Events sync in seconds. You never think about it again. Recurring events, new bookings, cancellations — all handled.

What users are saying

★★★★★

"I love Caledaro. My work and personal calendars now stay connected, so I can see my whole day without switching between accounts. Support is also quick to help whenever I need it."

Emma T.
Verified user
★★★★★

"This solved exactly what I needed. It is simple to use, flexible enough for my setup, and easy to recommend to colleagues."

Noah V.
Verified user
★★★★★

"Vlad's support has been outstanding — easily five stars, and I would give more if I could."

Marcus L.
Verified user
★★★★★

"A genuinely useful app for keeping my work and personal calendars in step. It works really well."

Sofia R.
Verified user
★★★★★

"Everything works smoothly. Great job!"

Daniel M.
Verified user
★★★★★

"It does exactly what it promises and keeps everything in sync. Thank you!"

Oliver B.
Verified user

One calendar sync tool for work, home and shared schedules

💼

Remote & hybrid workers

Your work Outlook doesn't see your personal Google Calendar. CALEDARO makes your full availability visible — without exposing details.

🧑‍💻

Freelancers & consultants

Keep client calendars aligned without sharing details between them. When Client A books you, Client B sees you're busy.

👨‍👩‍👧

Calendar sync for couples & families

Coordinate schedules without giving up privacy. Each person keeps their own calendar in sync with the other's — both see when the other is busy, not what they're doing.

🤖

AI-augmented professionals

Claude, Cursor, or Windsurf can read every calendar you own and find free time across all of them — via the CALEDARO MCP server.

📅

Google, Outlook & Apple Calendar users

Sync Google and Outlook calendars, connect Apple Calendar through iCloud/CalDAV, and keep Fastmail, Infomaniak or Nextcloud aligned too. If you have two calendars, they should know about each other.

Calendar sync software with proof and control

No black boxes. This calendar sync service shows what syncs, when it synced, and why.

🔒

Privacy by default

Personal events show as "Busy" on work. No titles, no descriptions, no attendees exposed.

↩️

Pause, undo, turn off

Stop syncing anytime. Optionally clean up all events we created — no orphaned "Busy" blocks left behind.

📊

See sync health

Know in seconds if it's working. Every sync shows its status — no guessing if events are flowing.

🔍

Filter what syncs

Skip all-day events or filter by title keyword. Per sync, your rules.

📆

All calendars, one screen

Day, week, month, agenda view across every provider at once.

One job, done well

We sync calendars. That's it. No productivity suite, no upselling habits or AI scheduling you didn't ask for.

What gets synced

Your privacy is the default. Colleagues see when you're busy — not why.

Data field Behavior
Event time and duration Synced — always
Event title Shows as "Busy" by default
Event description Off by default; can be copied
Attendees Off by default; advanced option
Reminders Disabled by default; configurable

Hosted in Germany (EU) · GDPR compliant · AES-256-GCM encryption · Privacy Policy

Answers to the things you're wondering

Yes. 2 accounts and 2 calendars, free forever. No trial, no credit card. Paid plans start around the price of a coffee per month if you need more.
Free: 2 calendars across 2 accounts, 1 sync. Plus: 20 calendars across 5 accounts, up to 5 syncs. Pro: 100 calendars across 20 accounts, up to 20 syncs.
Google Calendar, Microsoft Outlook, CalDAV providers (iCloud, Fastmail, Nextcloud), and iCal feeds. All support two-way sync except iCal, which is read-only.
Yes. CALEDARO can sync Google Calendar and Outlook in either direction, and can connect Apple Calendar through iCloud/CalDAV. Choose one-way sync when you only need to show availability, or two-way sync when changes in either calendar should stay aligned.
CALEDARO keeps calendars synchronized rather than permanently merging them into one account. Connect the two calendars, choose the direction, and new or updated events stay aligned. You can pause or remove the sync later and optionally clean up the events it created.
Yes. The free plan includes 2 accounts, 2 calendars and 1 sync with no credit card. It is a simple option for couples, families, or anyone who wants their calendars in sync without exposing private event details.
No. By default, personal events appear as "Busy" on your work calendar. Your colleagues see that you're unavailable — they don't see event titles, descriptions, or attendees.
Fast enough that you'll never notice a delay. Google and Outlook changes propagate in ~4.3 seconds via push notifications. CalDAV calendars and iCal feeds use scheduled polling because those protocols don't provide a universal webhook model.
Sharing lets you see another calendar, but it doesn't block time or show up in "Find a Time." CALEDARO actually syncs events so your availability is accurate to everyone scheduling with you.
Compare calendar sync tools by sync direction, supported providers, free-plan limits and privacy defaults. CALEDARO focuses on keeping calendars aligned, with a free plan and privacy-first “Busy” blocks. See the comparison overview.
Recurring events sync as full series, not individual instances. When you create a weekly meeting, the entire recurrence rule is copied — so all future instances stay in sync automatically.
Yes. Delete a sync and optionally remove all events we created. No orphaned "Busy" blocks, no calendar clutter.
Google and Outlook use OAuth; CalDAV credentials and iCal feed URLs are encrypted with AES-256-GCM. Hosted in Germany (EU), GDPR compliant.
Yes. CALEDARO works with both personal Gmail accounts and Google Workspace (business) accounts. You can sync between them freely.
Your syncs keep running until the end of your billing period. After that, syncs beyond the free tier limits are paused. You can always resume by upgrading again, or stay on the free plan with 2 calendars.

Still have questions? Get in touch

Free forever. Upgrade if you need more.

Most users never need to pay. When you do, plans are simple and affordable.

Free
For individuals getting started
$0
Free forever · no credit card

  • 2 calendars, 2 accounts
  • 1 sync
  • Two-way & one-way sync
  • Webhook sync where supported
  • 1-month sync horizon
  • 14-day history retention
  • ~1 hour/month saved on calendar work
Pro
Power users
$10.75 /month
Billed $129/year

  • 100 calendars across 20 accounts
  • Up to 20 syncs · 5 calendars per sync
  • Webhook sync + Priority Sync
  • MCP access for AI agents
  • Unlimited sync horizon
  • 1-year history retention
  • Priority support (4h)

Ready to stop double-booking?

No more checking two calendars before saying yes.

Takes 60 seconds · Free forever · 675+ people already syncing

Learn more about calendar sync

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