Your personal life,
off your work calendar.

For your personal Google Calendar we request read-only access (calendar.readonly) — we see event times, titles, and your response status. We never write to your personal calendar. For iCloud, you generate a 16-character app-specific password at appleid.apple.com; we use it via the CalDAV standard to read your events. For your work Google Calendar we request write access (calendar.events) so we can create, update, and delete the busy blocks we manage on your behalf. We never read or touch any other work calendar events.

Coworkers see that you're busy — that's it. Busy blocks are created as Private events in Google Calendar, which means the event title and all other details are hidden from anyone who views your calendar. You can see the label on your own work calendar (e.g. "Busy (via SyncBusy)" or whatever you configure), but your coworkers cannot. Your personal event title, description, location, and attendees are never written to your work calendar at all.

Yes. Your Google OAuth tokens and iCloud app-specific password are encrypted at rest with AES-256-GCM before being stored in Google Cloud Firestore. All traffic between SyncBusy and your calendars is encrypted in transit via HTTPS/TLS. We store the minimum data needed to operate — event IDs and mappings, your sync preferences, and your email address. We do not store event descriptions, attendees, locations, or attachments. We do not use analytics, tracking cookies, or advertising identifiers.

If your personal calendar is in Google Calendar, use Google. If it's in Apple Calendar / iCloud, use iCloud. Both get the same sync features and the same Pro options. The main practical difference is latency: Google Calendar uses push notifications so changes appear on your work calendar within seconds. iCloud is polled every 5 minutes (Pro) or 15 minutes (Free) because Apple's CalDAV service doesn't support real-time push.

For Google Calendar: near-instant. Google sends a push notification to SyncBusy when your personal calendar changes, and the busy block appears on your work calendar within a few seconds. For iCloud: up to 5 minutes on Pro, up to 15 minutes on Free. This is a limitation of the CalDAV protocol — Apple doesn't offer push notifications for third-party apps.

Not in a single account — each SyncBusy account has one personal calendar source (Google or iCloud) connected at a time. If you use both, you'd create two separate SyncBusy accounts with different personal providers, each pointing at the same work calendar.

Your account reverts to the Free tier at the end of your current billing period. Free limits apply: sync range is capped at 14 days ahead, event naming reverts to "Busy (via SyncBusy)", and Pro-only features (reverse sync, sync-days filter, scheduled pauses, custom naming) are disabled. Busy blocks already on your work calendar are not deleted — sync simply continues within the Free limits going forward.

Yes — we offer a 30-day refund on any Pro subscription, no questions asked. Email support@syncbusy.dev with your account email within 30 days of purchase and we'll issue a full refund.

Reverse sync is the mirror image of the main feature: it copies work calendar events you've accepted to a separate personal "SyncBusy" calendar. The idea is that your family can see your work schedule (the calendar you choose to share with them) alongside your personal one. Only events you've accepted are copied — tentative, declined, and not-yet-responded invites are excluded. Reverse sync is a Pro feature and only available when your personal calendar is Google Calendar (iCloud reverse sync is not yet supported).

The sync-days filter lets you choose which days of the week SyncBusy mirrors events. If you only work Monday–Friday, set the filter to Mon–Fri and Saturday/Sunday personal events won't create busy blocks. Existing busy blocks on excluded days are cleaned up automatically when you save the setting. Sync days is a Pro feature.

A few common reasons: (1) The event falls outside your configured sync range (default 14 days for Free, up to 60 days for Pro). (2) The event is marked as "free" in your personal calendar — SyncBusy skips transparent/free events by design. (3) You declined the invite — declined events are not mirrored. (4) For iCloud, there can be up to a 15-minute polling delay. If events still aren't syncing, use the "Sync Now" button on your dashboard or contact support@syncbusy.dev.

Go to your dashboard → scroll to the bottom → click "Disconnect & delete account". This immediately removes all busy blocks from your work calendar and permanently deletes your OAuth tokens, event mappings, sync configuration, and email address from our database. You'll be signed out and your account will be gone. There is no waiting period.