Laying out the streets…STEP 1 OF 3

Calendar 366 v4.0 · Office #45,082

Your events and tasks, now ready for iPhone Duo

In the Calendars and time zones neighborhood (Work and office). In town since 19 Oct 2026.

Nobody has claimed this office yet. Tablif records every new product and gives it an office; when its owner claims it, the lights go on.

Is this yours? Claim it

What Tablif read on Calendar 366 v4.0's site

Calendar 366 v4.0 describes itself as: “Calendar 366 – Calendar & Tasks for iPhone, iPad, Apple Watch & Mac”

What it is

Calls itself “app”.

  • Calls itself: app
“Calendar 366 brings events and tasks together in one native app for iPhone, iPhone Duo, iPad, Apple Watch and Mac.”

Where it puts itself

Rules out “collect or send any data to its own servers”.

  • Says it will not: collect or send any data to its own servers
“Calendar 366 doesn't collect or send any data to its own servers.”

What it costs

One-time purchase. A free tier, free forever. Trial: “7 days”. No monthly plan.

  • One-time: yes
  • Monthly: no
  • Free plan: free forever
  • Trial: 7 days
“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.”
“After that, choose a subscription or a one-time purchase.”

Who it sells to

In 13 languages.

  • Languages: 13 languages
“Available in 13 languages as a universal purchase.”

How it runs

A desktop app and mobile app for iOS and macOS. Runs locally and works offline. Distributed through the App Store. No API. AI is a side feature.

  • Kind: desktop · mobile
  • Runs on: iOS · macOS
  • Runs where: on the device, offline
  • Distributed via: App Store
  • API: no
  • AI role: a side feature
“Calendar 366 brings events and tasks together in one native app for iPhone, iPhone Duo, iPad, Apple Watch and Mac.”
“Fast, native, and privacy-focused on iPhone, iPad, Apple Watch, and Mac”

What it works with

Integrates with CalDAV, Claude, Google and 4 more. Runs inside Calendar 366.

  • Integrates with: CalDAV · Claude · Google · +4
  • Runs inside: Calendar 366
“It works with iCloud, Google, Outlook & Microsoft 365, CalDAV and Todoist.”
“Calendar 366 brings events and tasks together in one native app for iPhone, iPhone Duo, iPad, Apple Watch and Mac.”

What it offers as proof

Live, no waitlist. Try it without signing up.

  • Instant signup: yes
  • Trial asks for: nothing
“Download Calendar 366 Free”
“Calendar 366 is a free download with basic features. You can try all premium features for 7 days.”

Sources

Tablif read these pages, last on 19 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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