Calendar 366
by Calendar 366
What Calendar 366 is
Calendar 366 is a freemium calendar and task app for iPhone, iPad, Apple Watch, and Mac. It combines events and tasks, supports shared calendars, and provides two-way synchronization. Events can be entered in natural language and include durations, time zones, reminders, and recurring schedules. Tasks support reminders, location-based alerts, priorities, and notes. The app offers calendar views in portrait and landscape, with 10 views listed by the maker. Users can schedule Zoom, Google Meet, and Microsoft Teams meetings and join links from events. Integrations include iCloud, Google, Outlook, Microsoft 365, Todoist, Zoom, Fastmail, CalDAV, and system calendars. Apple Shortcuts and a URL scheme automate calendar actions. On Mac, MCP connects assistants such as Claude Desktop and LM Studio to events and tasks. Basic features are free, with a seven-day premium trial. Paid plans include $19.99 a year and $29.99 a year for the family plan.
Who it suits
It suits people managing events and tasks across Apple devices. It also fits users who need shared calendars, meeting links, or automation.
What it does well
- Works across iPhone, iPad, Apple Watch, and Mac
- Supports two-way sync and shared calendars
- Includes natural-language event creation
- Connects to major calendar and meeting services
- Stores calendar and task data locally
What to know first
- Premium features require a subscription or purchase
- Some integrations and MCP features are platform-specific
- Family monthly plan costs $4.99 a month
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Calendar 366 Pro (iOS) | Premium features for iOS | On request |
| Calendar 366 Pro Family (iOS) | Family plan for iOS | On request |
| Calendar 366 Pro (Yearly) | $19.99 per year · Premium features | $19.99 a year |
| Calendar 366 Pro Family (Yearly) | $29.99 per year · Family plan · premium features | $29.99 a year |
| Calendar 366 Pro Family (Monthly) | $4.99 per month · Family plan · premium features | $4.99 a month |
| Calendar 366 Pro | $49.99 one-time purchase · Premium features | $49.99, paid once |
| Calendar 366 Pro Family | $69.99 one-time purchase · Family plan · premium features | $69.99, paid once |
As calendar366.com lists them, read 22 Sept 2026. The maker's own page has the final word.
Verdict
Calendar 366 combines scheduling, tasks, meetings, integrations, and Apple automation in one app. Its free tier covers basic use, while premium access adds the broader feature set after a seven-day trial.
Facts from Calendar 366's own pages
- AI integrations
- On Mac, it connects to AI assistants such as Claude Desktop and LM Studio through MCP to read or manage events and tasks. · calendar366.com, 12 Oct 2026
- Apple automation
- Calendar 366 supports Apple Shortcuts and a URL scheme for actions such as adding, showing, importing, and switching calendars. · calendar366.com, 12 Oct 2026
- Calendar sync
- two_way · calendar366.com, 22 Sept 2026
- Company
- The site identifies Calendar 366 as a product by Vincent Miethe and gives a Berlin, Germany address. · calendar366.com, 12 Oct 2026
- Events
- It supports natural-language event creation, durations, time zones, reminders, and recurring schedules. · calendar366.com, 12 Oct 2026
- Free access
- The app is a free download with basic features and offers a 7-day trial of all premium features before subscription or one-time purchase. · calendar366.com, 12 Oct 2026
- Free plan
- Yes · calendar366.com, 22 Sept 2026
- Headquarters
- Berlin, Germany · calendar366.com, 28 Sept 2026
- Integrations
- The maker lists iCloud, Google, Outlook, Microsoft 365, Todoist, Zoom, Fastmail, CalDAV, and system calendars as integrations. · calendar366.com, 12 Oct 2026
- Meetings
- Users can schedule Zoom, Google Meet, and Microsoft Teams meetings and join meeting links from events. · calendar366.com, 12 Oct 2026
- Mobile apps
- ios · calendar366.com, 22 Sept 2026
- Product
- Calendar 366 combines calendar events and tasks in a native app for iPhone, iPad, Apple Watch, and Mac. · calendar366.com, 12 Oct 2026
- Push notifications
- For supported calendar push subscriptions such as Microsoft 365 and Outlook, APNs device tokens and subscription details are stored on the maker’s servers solely to relay notifications. · calendar366.com, 12 Oct 2026
- Security and privacy
- The maker says calendar and task data is stored locally, authentication tokens are kept in device Keychain, and third-party account data is not stored on its servers. · calendar366.com, 12 Oct 2026
- Shared calendars
- Yes · calendar366.com, 22 Sept 2026
- Support
- The maker provides documentation and lists [email protected] as its support contact. · calendar366.com, 12 Oct 2026
- Tasks
- Tasks can include reminders, location-based alerts, priorities, and notes. · calendar366.com, 12 Oct 2026
- Video meeting support
- Yes · calendar366.com, 22 Sept 2026
- Views
- The app provides multiple calendar views in portrait and landscape, with 10 views listed on the maker’s site. · calendar366.com, 12 Oct 2026
- Who it is for
- The app is designed for people who want to manage events and tasks across Apple devices. · calendar366.com, 12 Oct 2026
Where Calendar 366 stands on Freedom251
- Calendar apps#70 of 194