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Calendar 366

The calendar app for all your plans

Version 2.9.5
Requires iOS / iPadOS 15 or 16, watchOS 8 or 9

Calendar 366, the versatile calendar app for iPhone, Apple Watch & iPad. It comes with a beautiful fresh design, 8 different views and 9 themes to perfectly fit your needs and a lot of features such as natural language input, invitations & attachments. Of course, as universal app. Made for all your plans, made for you!

8 Views, 9 Themes

View, Add, Edit events & reminders

...Your way

by using natural language input
moving or resizing...

location & geo locations
pre-defined or complex repeating rules
and attachments synced* via iCloud...

Apple Watch-Able

Of course, Calendar 366 also works on the Apple Watch - giving you the complete calendar overview directly at the wrist. Simply use voice input to create new events or reminders.

10 Widgets + 5 (x2) Lock Screen Widgets

See your next events and tasks
a monthly overview
create new appointments quickly.

Today Widget & Spotlight Search

Get a quick overview about your schedule
simply search for events & to-dos with Spotlight.

Multitasking on your iPad

Use Calendar 366 in split view mode with other apps.

And... use the drag & drop feature to add attachments to your events or reminders.

Keyboard Shortcuts

Be even faster!

Use Key Commands
on your external keyboard to add new events and reminders, switching views or just to save.

Features at a Glance
  • • Apple Watch app (iPhone)
  • • Apple Watch Complications (Corner, Bezel, Modular, Utilitarian, Circular, Graphical, Extra Large)
  • • Calendar Sets
  • • Spotlight Search Support
  • • All events and to-dos at a glance
  • • 8 views, 9 themes
  • • Complete to-dos with a tip
  • • Easy, intuitive creation, copying and moving of appointments and reminders by drag & drop
  • • Easily invite attendees and manage invitations
  • • Complex repeating rules
  • • Time zone support
  • • Week numbers
  • • No pre-requisites setup (All iOS supported calendar services available: iCloud, Google, Exchange, Outlook, CalDAV)
  • • Compatible on all Apple devices (iPhone, iPad, Mac)
  • • All views optimized for portrait or landscape

Speaks your language

Calendar 366 is fully localized in English, German, Spanish, French, Japanese, Dutch, Italien, Polish and Chinese.


The Calendar 366 Family

The perfect partnership... Calendar 366 is also available for Mac
The most complete menu bar calendar for macOS!

Calendar 366 Family

Get Calendar 366 today!

Version 2.9.5
Requires iOS / iPadOS 15 or 16, watchOS 8 or 9

*Requires Calendar 366 & iCloud

Elegant and works well
I really appreciate the elegant design and easy to use features.


This app is perfect! I love it for the watch complication.


Bislang beste Kalender App
... Das gibt es sonst nirgendwo, nicht bei MiCal, nicht bei Fantastical, ...