UltraCalendar

UltraCalendar brings your schedule to life with a stunning Material 3 Expressive design that feels right at home on your Android device.

YOUR CALENDAR, YOUR STYLE
UltraCalendar uses dynamic theming to pull colors directly from your wallpaper, creating a seamless look that blends naturally with your home screen. Prefer something different? Premium custom color themes let you personalize every detail to match your taste.

A WIDGET THAT WORKS FOR YOU
Place a resizable calendar widget on your home screen and see your day at a glance. Expand it to show the full month or keep it compact, it adapts to whatever size you give it. Light and dark modes are fully supported, automatically matching your system preference or set manually.

GOOGLE CALENDAR SYNC
Connect your Google account and UltraCalendar pulls in your events, tasks, and birthdays, all in one place. Pull down to refresh and stay up to date. Authentication is handled entirely through Google's official sign-in flow, so your credentials are never touched by our app.

SMOOTH & INTUITIVE
Navigate effortlessly with fluid gesture controls. Swipe left and right to move between months. Collapse or expand the month view with a natural drag. Tap any event to expand it inline, edit details, reschedule, or delete with a satisfying confirmation animation. Everything responds instantly and feels polished.

INLINE EVENT MANAGEMENT
No more jumping between screens. Tap an event to see its details right in the calendar view. Edit the title, time, or description without leaving the page. Delete with a single swipe and a quick confirm, done. Creating new events is just as fast.

ROUTINES/HABIT TRACKING
Create your own custom routines to track habits and reoccurring activities. Keep track of streaks and see your progress in a dynamic heat map. Completely local and secure with no online presence or synchronization necessary. View habit and routine tracking in two personalized widgets.

CALDAV
Link your CALDAV, Offline, or self hosted calendar servers directly within the app, with seamless synchronization based on the android local calendar pipeline. All data stays on device.

GEMENI AI THAT WORKS FOR YOU
Gemini is tastefully integrated through out the app to help you create and edit everything you need inside the app. We also provide an AI kill switch to seamlessly disable all AI capabilities for those that are more privacy conscious.

PRIVACY FIRST
Your data stays on your device. UltraCalendar does not send your calendar data, contacts, or any personal information to third-party servers. There are no analytics, no tracking, and no ads. The only network connection is the sync between your device and your own Google account, nothing else.

WHAT'S INCLUDED
- Material 3 Expressive design with dynamic wallpaper theming
- Resizable home screen calendar widgets
- Google Calendar, Tasks, and Birthdays sync
- Caldav sync
- Quick glance weather for the week, and hourly
- Swipe navigation between months
- Collapsible/expandable month view
- Inline event viewing, editing, and deletion
- Pull-to-refresh sync
- Light and dark mode support
- Premium custom color themes
- Customizable Notifications and Vibrations
- Universal Search
- .ICS file importing
- Fully offline calendar option with independent backup and restore
- Gemini integration to help you create events and descriptions (can turn off in settings for privacy)
- No tracking, no data collection

UltraCalendar is the calendar widget Android deserves — fast, beautiful, and private.