iOS 27 introduces notable design changes to Apple's Calendar app, focusing on the event details view and event creation/editing screens. The event details view now features a reorganized layout with added icons, allowing more information to be displayed on-screen at once for easier parsing. Similar updates appear when creating or editing events, where headings better organize parameters and icons improve visual clarity.

These changes, combined with systemwide Liquid Glass enhancements, give the Calendar app a more modern feel after years of minimal design updates. The redesign marks one of the app’s most significant visual overhauls in recent memory, improving usability without altering core functionality. Apple continues to refine its native apps with iOS 27, and Calendar benefits from clearer information hierarchy and improved touch targets.

The update reflects a broader effort to modernize legacy apps while maintaining consistency across the ecosystem. Users can expect a cleaner, more intuitive experience when managing schedules in iOS 27.