A calendar that's
nobody's business
but yours.
Your events live on your own Mac, or sync straight to iCloud or your CalDAV server. No account to create, no analytics, nothing phoned home — just a fast, calm calendar that's yours alone.
A calendar knows your whole life. This one tells no one.
Your plans never leave your Mac.
Local calendars live in a database on your disk. Connect iCloud or CalDAV and your events sync straight to your provider — no Callllendar server sits in the middle, and there's no telemetry. Ever.
No account. No tracking. No analytics.
There's nothing to sign up for and nothing phones home. No advertising identifiers, no third-party SDKs, no crash reporting that leaves your device.
Credentials stay in the Keychain.
CalDAV passwords are stored only in your Mac's system Keychain — never in plain text, never sent to us. Connections use TLS 1.2+.
Sketchy links get caught — on device.
Meeting links in invitations are checked against public threat lists locally, and trackers are stripped, before anything opens. You're always free to open anyway.
Private doesn't mean
fewer features.
Callllendar is a fast, full calendar that happens to respect you. Keyboard to the core, calm by design.
Run your whole week
without a mouse.
Single keys jump views, go to today, and start a new event. Natural-language quick-add turns “lunch w/ Sam fri 1pm” into an event, and ⌘K opens a command palette for everything else.
Every view
Day, work week, week, month, year, and agenda — with a collapsible calendar list and a detail panel.
Recurring, done right
Edit one event, the whole series, or “this and following.” Time zones and all-day events handled properly.
Siri & Shortcuts
Ask for your next event or today's agenda, or add one — hands-free. Answers come back out loud, no window needed.
There's a lot more where that came from.
No cloud theatre.
Standard TLS (1.2+) on every CalDAV connection. Your passwords live in the macOS Keychain, never in the database. No proprietary scheme, no account, no overselling — just a calendar that doesn't watch you.