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Your events and tasks, everywhere. Fast, native, and privacy-focused on iPhone, iPad, Apple Watch, and Mac – with an interface that just feels right.

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Layer
Layer
Layer

Everything you (probably) need

Events

Events

Create events in seconds using natural language. Set durations with a single tap, add time zones, reminders, recurring schedules, and more.

Tasks

Tasks

Plan and structure your tasks. Right in your calendar – with reminders, location-based alerts, priorities, notes, and much more.

Views

Views

More views than you (probably) need – in portrait and landscape. Choose the view that fits the way you plan – or quickly switch via swipe and tap.

Meetings

Meetings

Schedule Zoom, Google Meet, and Microsoft Teams meetings with a single tap. Join any meeting link directly from your event – Webex, Skype, FaceTime, and many more.

Calendar Sets

Calendar Sets

Create sets of calendars and lists to quickly switch what's visible. Always in sync across all your devices.

Attendees

Attendees

Invite people to your events and meetings and see their status. New invites land right in your inbox – accept or decline with a tap.

Categories

Categories

Color-code your events and tasks with categories and labels. Easy to distinguish, easy to find.

Travel Time

Travel Time

Never miss the time to leave. Travel time updates automatically based on your location – by car, by bike, or on foot.

Light or dark – whatever you fancy.

Calendar 366 comes with 3 themes and 9 accents. Light, dark, or black – pick your theme. Then choose your favorite accent to set the mood. Mix and match until it feels right.

Dark Mode Light Mode

No calendar left behind

System
System
iCloud
iCloud
Google
Google
Outlook
Outlook
Microsoft 365
Microsoft 365
Todoist
Todoist
Zoom
Zoom
Fastmail
Fastmail
CalDAV
CalDAV
Subscriptions
Subscriptions
iPhone, Menubar, Watch

Compact but complete

  • 10 different views
  • Portrait and landscape
  • Time to leave notifications
  • Location-based reminders
  • Manage events and tasks on Apple Watch
  • Complications for Apple Watch
Mac

More screen, more overview

  • Any view, any combination
  • Full menu bar calendar on macOS
  • Natural language input
  • Apple Shortcuts support
  • Multi-window support on iPad
  • Keyboard shortcuts

Natural language, nothing fancy

Create events and tasks using natural language. Just type what, when, and where – and refine with options.

  • Meeting with Alex tomorrow 10am /Work
    Creates an event tomorrow at 10am in calendar "Work"
  • Lunch with Sarah Friday 12:30 Café Central
    Creates an event on Friday at 12:30 with location
  • Dentist next Monday 3pm -a1d
    Creates an event with alert 1 day before
  • Team standup next Monday 9am -r1w /Work
    Creates a weekly recurring event in calendar "Work"
  • Flight to Berlin 15.3. 7:00-9:30
    Creates an event with start and end time
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  • Buy groceries tomorrow !
    Creates a task with low priority
  • Finish report Friday /Work !!
    Creates a task in list "Work" with medium priority
  • Call mom Sunday 6pm
    Creates a task due Sunday at 6pm
  • Fix bug in login /Work !!!
    Creates a task in list "Work" with high priority
  • Water plants next Monday -r1w
    Creates a task that repeats every week
Image

At a glance

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Apple Watchable

Calendar 366 on your wrist. Check your schedule, create events and tasks, mark them done, or delete them — right on your Apple Watch. Complications and widgets keep your day in sight.

Apple Watch
Apple Watch
Apple Watch
Apple Watch
Apple Watch
Apple Watch

Widgets everywhere

Calendar 366 comes with 12 home screen and desktop widgets, 6 lock screen widgets, and 10 watch complications. Your schedule, always within reach.

Widget Widget Widget Widget Widget Widget Widget
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Phone

Shortcuts & URL Scheme

Calendar 366 supports Apple Shortcuts and provides a powerful URL scheme for automation. Integrate Calendar 366 with other apps or create your own workflows.

Phone
cal366://add
cal366://open
cal366://show
cal366://summarize
cal366://import

Examples

cal366://add?type=event&query=Meeting tomorrow 10am
cal366://show?view=month
cal366://import?url=https://example.com/calendar.ics
Documentation

Frequently Asked Questions

Yes. Calendar 366 is a free download with basic features. You can try all premium features for 7 days. After that, choose a subscription or a one-time purchase.

Go to your App Store subscription settings.

Apple Account

You need to enable two-factor authentication and generate an app-specific password to log in to iCloud. Generate an app-specific password at:

https://appleid.apple.com

For more information visit:

https://support.apple.com/HT204397

If you're having issues with a specific account, go to Settings → Accounts → select the account → Reset Sync-Data.

For a full reset on iOS, delete and reinstall the app.

On Mac, quit Calendar 366, delete the following folder and restart your Mac:

/Users/USERNAME/Library/Group Containers/346J24NQNV.com.nspektor.Calendar366

If your Apple Watch is not showing any events, open Calendar 366 on your iPhone to trigger the initial sync.

If no events or reminders are showing at all, check your permissions in System Settings → Privacy & Security → Calendars / Reminders and make sure Calendar 366 has access.

Yes. Open an .ics file directly, share a link via the share extension, or use the URL scheme. For web links, Calendar 366 will ask if you want to import the event or create a subscription.

Yes. Shared calendars are fully supported and displayed like any other calendar. To share a calendar, use your provider's settings:

iCloud

Google Calendar

Outlook

GMX

Check the time zone of the event itself. Then check your system time zone settings under System Settings → General → Date & Time. Also check the time zone settings in Calendar 366 under Settings → General.

You can set a default calendar and list per calendar set – either a fixed one or the last used one. Go to Settings → Calendar Sets and select your set.

If you purchased an older version from the App Store, go to App Store → My Purchases. Otherwise, download here:

Calendar 366 Plus (v1)

Calendar 366 II (v2)

Request your license key by email (Paddle purchases only):

Download
Calendar 366 Free

One app, all your Apple devices. Available in 12 languages as a universal purchase.

(MT)

Your data stays yours. No account required, no analytics, no tracking. Calendar 366 doesn't collect or send any data to its own servers.

Mobile app screens
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