Keep your work Google Calendar and personal iCloud calendar in sync — without merging your life into one calendar
Block time as busy on your personal calendar and it actually blocks the time on your work calendar — without your dentist appointment's name showing up on a client's screen.
Illustration: a new meeting added in Google Calendar appears on the iPhone calendar, and a private dentist appointment added on the iPhone shows up in Google Calendar only as “Busy”.
One person, two calendars, one real schedule
Consultants, recruiters, real-estate and insurance agents usually run two calendars: a work Google Calendar clients and colleagues can see, and a personal iCloud calendar for everything else. Double-booking happens exactly at the seam between the two — because neither calendar knows what's on the other.
Seam syncs both directions and, on the Professional plan, can mirror events across as “Busy” only — no title, location, or guest list — so your availability shows up everywhere without your personal details leaking onto a work calendar.
What this looks like day to day
A real-estate agent blocks off a Saturday afternoon showing on their personal iCloud calendar — it shows up as "Busy" on the work Google Calendar clients see, so nobody double-books that slot, but no client sees the address or the buyer's name. A recruiter with a dentist appointment doesn't have to manually re-block their work calendar to avoid an interview being scheduled over it. A consultant juggling several client Google Calendars can extend the same busy-only mirroring across each pair individually — Professional supports up to 10 synced calendar pairs, not just a single work/personal one.
None of this requires touching event permissions inside Google or Apple Calendar themselves — the privacy behavior is set once in Seam, per calendar pair, and applies automatically to every future event, not just the ones synced at setup.
A shared calendar link isn't the same thing.
Most people's first attempt is exporting or subscribing to a calendar link. It looks like it works — until an edit or a cancellation doesn't show up on the other side.
How it works
Connect Google
Sign in once. Nothing to export, nothing to copy.
Connect iCloud
An app-specific password — not your real Apple ID password — kept encrypted and revocable anytime.
Pick which calendars mirror each other
New events, edits, and cancellations sync both ways, automatically.
Runs on our servers, around the clock. Your phone can be off.
Built to be trusted with your calendar
The permissions, the data handling, and what happens if you ever want out — stated plainly, not buried in the Privacy Policy.
It previews before it acts
Seam previews every first sync: what gets copied, what gets linked, what gets deleted. Every change is logged, and any change can be undone.
We never see your passwords
Google connects through its own sign-in. iCloud connects with an app-specific password — not your real Apple ID password — that you create yourself and can revoke at any time.
Encrypted, and only used to sync
Access tokens are encrypted at rest. Your events are read only to copy them — never sold, never used for ads.
Delete anytime, fully
Deleting your account stops all syncing and removes your data immediately, with the option to also remove events Seam created.
A person replies, not a queue
Support replies within 3 business days. Professional and Team plans get a human response in about 4 hours.
Live system status
Website, web app, and the calendar sync worker — checked live. status.seamcal.com
Simple pricing.
Try it free first.
Every account starts with 5 days of Professional, free. No card needed. Pay yearly and get two months free.
- Up to 3 calendar pairs
- Two-way sync, every 5 minutes
- Undo changes for 90 days
- Up to 10 calendar pairs
- Sync every 2 minutes
- Private events shared as “Busy”
- Undo changes for 180 days
- Everything in Professional
- Team availability at a glance
- Sync every minute
- Undo changes for a year
Prefer we set it up for you? Done-for-you setup, €199 → You just connect your two accounts.
Before
you ask.
Will my client see my personal event details?
No — with privacy titles (included in Professional), only “Busy” shows up cross-calendar, never the title, location, or guests.
Can I sync more than one work calendar this way?
Yes — Professional supports up to 10 synced calendar pairs, so several client or work calendars can each mirror privately into your personal one.
Is this different from Team plan sharing?
Busy-only privacy mirroring is available on both Professional and Team. Team's difference is multiple seats for a group, not the privacy feature itself — Personal doesn't include privacy titles.
Will it duplicate my events?
No. Events that already exist on both sides are linked, not copied twice.
What happens if I stop paying?
Nothing is deleted. Your account drops to the free plan, which syncs one way, a few times a day.
Can I undo a change?
Yes. Every change Seam makes is logged and can be reversed — for 90 to 365 days, depending on your plan.
Does Seam read my events?
Only to copy them between the calendars you pick. Never sold, never used for ads or AI training.