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Calendar 366

For all your plans!·nspektor.com

Calendar 366 is a native calendar and tasks app for iPhone, iPad, Apple Watch, and Mac. It supports natural-language event and task creation, multiple calendar views, meeting scheduling (Zoom, Google Meet, Microsoft Teams), travel time alerts, and widgets across devices. It syncs with services like iCloud, Google, Outlook, Microsoft 365, Todoist, Fastmail, and CalDAV, and is positioned as privacy-focused with no account required and no data sent to its own servers.

What it's for

Creating events and tasks using natural language inputManaging schedules across iPhone, iPad, Apple Watch, and MacScheduling and joining video meetings (Zoom, Google Meet, Microsoft Teams, Webex, Skype, FaceTime)Tracking travel time to eventsViewing and managing calendars via Apple Watch complications and widgetsAutomating calendar actions via URL scheme, Apple Shortcuts, or AI assistants (MCP)

Features 20

10 different calendar/task views (portrait and landscape)
20 home screen/desktop widgets, 6 lock screen widgets, 10 watch complications
3 themes and 9 accent colors
Apple Shortcuts support and URL scheme automation
Apple Watch app with complications
Attendee invitations with status tracking
Automatic travel time notifications
CalDAV and calendar subscriptions support
Calendar Sets to group and switch calendars/lists
Color-coded categories and labels
Full menu bar calendar on macOS
Join meeting links from Webex, Skype, FaceTime, and more
Keyboard shortcuts
Location-based reminders
Meeting scheduling for Zoom, Google Meet, and Microsoft Teams
Model Context Protocol (MCP) integration for AI assistants
Multi-window support on iPad
Natural language event and task creation
Reminders and recurring schedules
Time zone support

At a glance

free tierfree trialAPI

TypeMobile app

DeploymentInstalled (local)

PlatformsiOS, macOS

LanguagesEnglish, German, Italian, Dutch, Spanish, French, Portuguese, Danish, Norwegian, Swedish

CompanyVincent Miethe

Integrations

iCloudGoogleOutlookMicrosoft 365TodoistZoomFastmailCalDAVGoogle MeetMicrosoft TeamsWebexSkypeFaceTimeClaude DesktopLM StudioApple Shortcuts

Resources

Pricing

App is a free download with basic features; premium features can be tried free for 7 days, after which users choose a subscription or one-time purchase. Specific pricing is not publicly listed.

FreeFree

Free download; no account required.

Basic features only

Premium SubscriptionQuote

Available after 7-day free trial of premium features; exact price not stated on the pages.

One-time PurchaseQuote

Alternative to subscription after 7-day trial; exact price not stated on the pages.