OneCal Blog

Connect any CalDAV calendar to OneCal, like Fastmail, Yahoo, or Zoho. This release also adds multiple time zones, drag-and-drop, undo, and much more.

OneCal scheduling links now come in three layouts: Monthly, Weekly and Column. Schedulers can also overlay their own calendar to see when they are free or busy before they book.

Microsoft is retiring the Google Workspace and Teams calendar sync in October 2026. Learn what changes, who is affected, and how to continue synchronizing your Google and Microsoft Teams calendars.

OneCal now comes with an AI Assistant. Tell it what you need in your own words, and it takes care of your events, syncs, booking links, and anything OneCal related.

OneCal has successfully completed its SOC 2 Type II audit, reinforcing our commitment to security and privacy. Explore our new Trust Center to review policies, controls, subprocessors, and request access to our SOC 2 Type II and penetration testing reports.

The OneCal mobile app now reminds you before your events start, tells you when someone books through your scheduling links, and lets you know when we ship something new.

The OneCal Calendar MCP Server is here. Connect your Google, Outlook, and iCloud calendars to Claude, ChatGPT, and any MCP client, and let your assistant actually read your schedule and book things for you.

OneCal now supports Single Sign-On (SSO) with SAML 2.0 and OIDC. Available on all plans. Works with Okta, Google, Entra ID, and more.

We’re excited to announce that OneCal now integrates with Zapier. With this integration, you can create automated workflows that connect OneCal to the apps your team already uses, helping you save time and simplify calendar management.

OneCal for Android is now available for free on the Play Store. Manage all your Google, Outlook, and iCloud calendars in one app. Sync availability, share scheduling links, and manage bookings from your phone.

OneCal for iOS is now available for free on the App Store. Manage all your Google, Outlook, and iCloud calendars in one app. Sync availability, share scheduling links, and manage bookings from your phone.

We’re excited to introduce Dark Mode support to our web app, giving you a more comfortable viewing experience in low-light environments. Dark Mode reduces eye strain, improves focus, and lets you work longer without fatigue, all while maintaining the clarity and performance you expect from OneCal.