Calendar 366: Events & Tasks

Calendar 366: Events & Tasks

For all your plans!

537 ratings
201 reviews

Archived App (Last seen on 1 May 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Price history

Details

  • Released
  • Updated
Calendar 366: Events & Tasks screenshot #1 for iPhone
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Calendar 366: Events & Tasks screenshot #10 for iPhone
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About

Manage your appointments, to-dos, and important dates with a highly customizable calendar application. It offers intuitive natural language input for event creation, multiple display options, and seamless integration with various map services and Apple devices.

Natural language event creation
Customizable display and themes
Apple Watch app and complications
Home and Lock Screen widgets
Spotlight search integration
Calendar Sets for organization
Travel time calculation
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What users say

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What's New in Calendar 366

2.11.2

December 31, 2025

Happy New Year. This update includes minor bug fixes and an updated app icon.

User reviews

Include vertical scroll and weather

All I need now Include vertical scroll and weather to give this a 5star rating. Will gladly pay another 1 TIME fee for that

Thanks for updating app for 2026!

I love this app because it allows you to share .ics calendar appointments via email with other users, without having to use iCloud. It also has the best combined monthly/daily-list view too, and no subscription is required!

Note for developer: Realizing it’s a lot of work to keep updating an app without receiving subscription fees, I want to say thanks. In the future I’m sure they’re many existing users that would gladly pay another one-time fee for important updates. :)
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PLEASE UPDATE FOR iOS 26!!!

Used to be a great 5–Star app, which I’ve been using for years now. However, it desperately needs to be updated for iOS 26 because I’m having serious problems with unwanted time zone shifts on appointments and lack of liquid display support. I put in a support request to the developer, but I never received a response back, so that’s why I posted this downgraded review. Please update this app so I can change my rating back to 5-Stars. Thanks!
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Become buggy.

Update: Over time bugs emerging. Reported to developer but no fixes, no reply so maybe now abandoned? Bugs are getting annoying.
Reduced rating.
I've been through quite a few calendar apps and always had to switch back to Apple's built in calendar. I don't find Apple's iOS calendar very useful (poor use of limited screen space, limited view options, etc.)

Calendar 366 ticks all the "Pros" and none of the "Cons".
1. It works (nor all paid for competitors do)

2. Battery and network efficient.

3. Very customisable views - easy to tweak.

4. Good use of limited screen space on iPhone

5. Lots of different views

etc.
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Meh

I purchased Calendar 366 after Fantastical went subscription. Initially it was a good choice. However, in the ensuing years, the developer has become less and less responsive, and innovation and support have waned. Moving on to another calendar tool.

Developer apps

User experience

🐞

Reported Bugs

4 issues

Events disappearing from calendar view

Bug

Unable to edit existing events in some cases

Bug

Time zone changes causing issues with event times

Bug

Widgets not updating correctly

Bug

Requested Features

7 requests

Add location-based reminders

Feature

Improve widget customization options

Feature

Allow setting multiple alarms for events

Feature

Implement two-way sync with Reminders app

Feature

Add ability to create event templates

Feature

Improve month view to show more event details

Feature

Provide option to set first day of week

Feature

FAQ

What does Calendar 366 do?

Calendar 366 is a comprehensive calendar application designed to help you manage all your plans, including appointments, to-dos, meetings, deadlines, and special dates. It offers intuitive features for creating, organizing, and viewing your schedule.

What are the key features of Calendar 366?

Key features include natural language input for event creation, customizable display options with multiple views and themes, Apple Watch integration with complications, numerous home and lock screen widgets, Spotlight search, Calendar Sets for organization, and travel time support.

Is Calendar 366 free to use?

Yes, Calendar 366 is a free application. It does not have in-app purchases or advertisements, allowing users to access all its features without any cost.

What devices is Calendar 366 compatible with?

Calendar 366 is compatible with all Apple devices, including iPhone, iPad, and Mac. It also features a dedicated Apple Watch app and supports Siri Watch Face and Siri Shortcut integration.

How can I create events in Calendar 366?

You can create events using natural text input, such as 'Meeting tomorrow 10am Melrose Ave /work' or 'Sauna! next Sunday 3pm'. The app is designed to understand various ways you might phrase your event details, making creation quick and easy.