Caffeinated Calendar is now available on Android and iOS. It is a free calendar app that connects to Google Calendar, iCloud, Microsoft Outlook, Zoho, and any standard CalDAV server, all in one view.
No ads. No tracking. No account required.
Just your calendars, on your device, working offline.
The Problem with Shared Calendars
You share a calendar with your spouse, your kids, maybe your church group. Suddenly you are looking at everyone’s dentist appointments, medication reminders, and soccer practices.
Most calendar apps give you two choices: see everything, or hide the whole calendar.
Neither works.
Caffeinated Calendar introduces client-side event filtering. Long-press any event, tap “Create Filter,” and it disappears from your view without affecting anyone else’s calendar. You can filter by keyword, time of day, specific events, or all-day events. Hide them completely, or dim them so they fade into the background.
What It Does
- Six calendar views: Day, Week, Month, Year, Agenda, and List
- Connects to everything: Google, iCloud, Microsoft, Zoho, any CalDAV server, device calendars, and webcal subscriptions
- Tasks: Full CalDAV task management with priorities, subtasks, and due dates, shown alongside your events
- Natural language quick add: Type “Lunch Friday noon at Cafe” and it just works
- Recurrence without limits: Every 2 weeks on Monday, last Friday of the quarter, any pattern you need
- Full-text search: Find any event across all your calendars
- RSVP: Accept, decline, or tentative directly from the app
- Widgets: Agenda, month, and quick-add widgets on both Android and iOS
- Holiday calendars: Built-in catalog covering 20+ countries
Runs on Phone and Tablet
Caffeinated Calendar runs on Android and iOS. On tablets, the layout adapts with a persistent sidebar and more room to see your week.
Built with Privacy in Mind
- Your data stays on your device and syncs directly with your calendar providers
- OAuth 2.0 for Google and Microsoft (no passwords stored)
- CalDAV credentials stored in platform-native secure storage
- No analytics, no telemetry
- Weather data from Open-Meteo (free, no API key, no tracking)
We never see your events or login information.
Free to Use
Caffeinated Calendar is completely free. No subscriptions, no in-app purchases.
Download
Caffeinated Calendar is available now.
