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Calendars · head to head

OmniFocus vs Outlook Calendar

OmniFocus logo

OmniFocus

Calendars

Professional-grade task management for power users

From
$99.99/year
Rated
-
Full reviewWebsite
Outlook Calendar logo

Outlook Calendar

Calendars

Professional calendar management for Microsoft 365

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Outlook Calendar has a free tier, so it costs nothing to try first.
  • Each has a real cost: OmniFocus exclusive to Apple ecosystem with no Windows or Android support; Outlook Calendar offline support limited to only past 30 days of events, older events unavailable
  • They diverge on capability: OmniFocus covers Custom perspectives, Outlook Calendar covers Meeting scheduling.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which OmniFocus and Outlook Calendar actually diverge.

Attributes where OmniFocus and Outlook Calendar differ
AttributeOmniFocusOutlook Calendar
Starting price$99.99/yearFree
Free tierNoYes
PlatformsmacOS, iOS, iPadOS, watchOS, visionOS, WebWeb, Windows, macOS, iOS, Android
Founded19891975

Identical on both: pricing model (Unknown), user rating (Not yet rated), category (Calendars).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in OmniFocus

  • Custom perspectives
  • Review mode
  • Forecast view
  • Tags
  • Automation
  • Apple Calendar
  • Siri
  • Shortcuts

Only in Outlook Calendar

  • Meeting scheduling
  • Shared calendars
  • Room booking
  • Availability sharing
  • Recurring events
  • Microsoft Teams
  • OneDrive
  • SharePoint

Both cover

  • Macos support
  • Ios support
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

OmniFocus

  • Scheduling
  • Appointment booking
  • Time tracking
  • Resource management
  • Team coordination

Outlook Calendar

  • Scheduling
  • Appointment booking
  • Time tracking
  • Resource management
  • Team coordination

Both are used for scheduling, appointment booking, time tracking, resource management, team coordination, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

OmniFocus

  • Exclusive to Apple ecosystem with no Windows or Android support
  • No collaboration features make it unsuitable for team task management or delegation
  • Setting up repeating tasks is cumbersome with multiple configuration options
  • Lacks AI-powered features for advanced project management, load balancing, or contextual awareness

Outlook Calendar

  • Offline support limited to only past 30 days of events, older events unavailable
  • Shared calendars and group calendars not available offline
  • Cached Exchange Mode issues can limit available offline data
  • Occasional sync conflicts when coming back online

Pricing, plan by plan

OmniFocus

$99.99/year
  • Subscription$99.99/year
    • All Pro features
    • Web access
    • Cloud sync
  • Standard (Perpetual)$74.99/one-time
    • Basic task management
    • Projects and contexts
    • Perspectives
  • Pro (Perpetual)$149.99/one-time
    • Custom perspectives
    • Advanced automation
    • Plugins support

Outlook Calendar

Free
  • FreeFree
    • Outlook.com email and calendar
    • 50MB attachment limit
    • 1GB cloud storage
  • Microsoft 365 Basic$19.99/year
    • Outlook with limited features
    • Cloud storage
  • Microsoft 365 Personal$99.99/year
    • Premium Outlook
    • Ad-free email
    • 100GB mailbox storage
  • Microsoft 365 Business Basic$6/month
    • Business-class email
    • 1TB cloud storage
    • Microsoft Teams

Which should you pick?

Choose OmniFocus if

  • You need custom perspectives.
  • You work on macOS, iOS, iPadOS, watchOS, visionOS, Web.
  • You also want review mode.
OmniFocus review

Choose Outlook Calendar if

  • You need meeting scheduling.
  • You want to start without paying.
  • You work on Web, Windows, macOS, iOS, Android.
  • You also want shared calendars.
Outlook Calendar review

Questions people ask

Is OmniFocus or Outlook Calendar better?
Neither clearly leads. OmniFocus starts at $99.99/year and Outlook Calendar at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OmniFocus or Outlook Calendar?
Outlook Calendar has a free tier; the other does not. Paid plans start at $99.99/year for OmniFocus and Free for Outlook Calendar.
Does OmniFocus or Outlook Calendar run on more platforms?
OmniFocus runs on macOS, iOS, iPadOS, watchOS, visionOS, Web. Outlook Calendar runs on Web, Windows, macOS, iOS, Android.
Can I use Outlook Calendar for free?
Yes. Outlook Calendar has a free tier, so you can try it without paying. OmniFocus starts at $99.99/year.
What is OmniFocus best used for?
OmniFocus is most often used for scheduling, appointment booking, time tracking, resource management.
What can OmniFocus do that Outlook Calendar cannot?
OmniFocus covers Custom perspectives, Review mode, Forecast view, Tags. Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. Both handle Macos support, Ios support, Web support.

Answered from the vendors’ own pages

OmniFocus: Does OmniFocus offer a free tier?

No, OmniFocus does not offer a free tier. It requires purchase or subscription: $99.99/year subscription or one-time perpetual licenses at $74.99 (Standard) or $149.99 (Pro).

Source
Outlook Calendar: Is Outlook Calendar free?

Outlook.com with calendar is free via a Microsoft account. Outlook Calendar also comes with Microsoft 365 Personal ($99.99/year), Family ($129.99/year), or Business plans starting at $6/user/month.

Source
OmniFocus: What is the free trial period for OmniFocus?

OmniFocus offers a 14-day free trial allowing full access to all features before requiring payment.

Source
Outlook Calendar: Does Outlook Calendar work offline?

Outlook Calendar has limited offline support. New Outlook caches only the past 30 days of calendar items. Shared calendars and group calendars are not supported offline. Changes sync when you reconnect.

Source
OmniFocus: What platforms does OmniFocus support?

OmniFocus is exclusive to Apple ecosystem: Mac, iPhone, iPad, Apple Watch, Apple Vision Pro, and web access. Not available on Windows or Android.

Source
Outlook Calendar: What platforms does Outlook Calendar support?

Outlook Calendar is available on Windows (desktop and web), macOS (desktop and web), iOS, and Android. Real-time synchronization works across all devices.

Source
OmniFocus: Can teams collaborate in OmniFocus?

No, OmniFocus lacks collaboration features and is designed as a solo task management tool. Users cannot delegate tasks, share projects, or assign work to team members.

Source
Outlook Calendar: Does Outlook Calendar integrate with Slack?

Yes. Outlook Calendar integrates with Slack to sync your status and receive meeting notifications. You can RSVP to invites directly in Slack and join Microsoft Teams meetings from Slack reminders.

Source
OmniFocus: Does OmniFocus support Getting Things Done (GTD) methodology?

Yes, OmniFocus is built specifically to support GTD with projects, contexts (tags), folders, perspectives, and a focus view for prioritization. It includes weekly review support and automation features.

Source
Outlook Calendar: Can you share calendars and set delegate permissions?

Yes. Outlook Calendar supports calendar sharing with delegate permissions, color categories for organization, and the Scheduling Assistant to view attendee availability for meeting times.

Source
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