Calendar & Time Management · head to head
Outlook Calendar vs Apple Calendar
Outlook Calendar
Calendar & Time Management
Professional calendar management for Microsoft 365
- From
- Free
- Rated
- -
Apple Calendar
Calendar & Time Management
The calendar app built into every Apple device
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Outlook Calendar offline support limited to only past 30 days of events, older events unavailable; Apple Calendar offline sync via USB has reported issues with duplicated events when syncing between macOS and iOS
- They diverge on capability: Outlook Calendar covers Meeting scheduling, Apple Calendar covers Event management.
Where they differ
Only the attributes on which Outlook Calendar and Apple Calendar actually diverge.
| Attribute | Outlook Calendar | Apple Calendar |
|---|---|---|
| Platforms | Web, Windows, macOS, iOS, Android | iOS, macOS |
| Founded | 1975 | 1976 |
Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated), category (Calendar & Time Management).
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 Outlook Calendar
- Meeting scheduling
- Shared calendars
- Room booking
- Availability sharing
- Recurring events
- Microsoft Teams
- OneDrive
- SharePoint
Only in Apple Calendar
- Event management
- Multiple calendar support
- Travel time estimates
- Natural language input
- Siri integration
- iCloud
- Google Calendar
- Microsoft Exchange
Both cover
- Macos support
- Ios support
What people use each for
The jobs each tool is most often brought in to do.
Outlook Calendar
- Scheduling
- Appointment booking
- Time tracking
- Resource management
- Team coordination
Apple 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.
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
Apple Calendar
- Offline sync via USB has reported issues with duplicated events when syncing between macOS and iOS
- No granular calendar exclusion option; iCloud syncs all calendars together with no selective sync
- Limited offline functionality for non-iCloud calendars
Pricing, plan by plan
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
Apple Calendar
FreeNo published plan breakdown. See the Apple Calendar review.
Which should you pick?
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.
Choose Apple Calendar if
- You need event management.
- You want to start without paying.
- You work on iOS, macOS.
- You also want multiple calendar support.
Questions people ask
- Is Outlook Calendar or Apple Calendar better?
- Neither clearly leads. Outlook Calendar starts at Free and Apple Calendar at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Outlook Calendar or Apple Calendar?
- Outlook Calendar starts at Free and Apple Calendar at Free.
- Does Outlook Calendar or Apple Calendar run on more platforms?
- Outlook Calendar runs on Web, Windows, macOS, iOS, Android. Apple Calendar runs on iOS, macOS.
- Can I use Outlook Calendar for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Outlook Calendar best used for?
- Outlook Calendar is most often used for scheduling, appointment booking, time tracking, resource management.
- What can Outlook Calendar do that Apple Calendar cannot?
- Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. Apple Calendar covers Event management, Multiple calendar support, Travel time estimates, Natural language input. Both handle Macos support, Ios support.
Answered from the vendors’ own pages
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.
SourceApple Calendar: Does Apple Calendar cost anything?
No. Apple Calendar is completely free and comes pre-installed on all Apple devices with no subscriptions or paid tiers.
SourceOutlook 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.
SourceApple Calendar: Does Apple Calendar work offline?
Apple Calendar can display cached events offline but cannot create or edit events without an internet connection. Sync requires iCloud or another calendar service.
SourceOutlook 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.
SourceApple Calendar: What calendar services can I sync with Apple Calendar?
Apple Calendar can sync with Google Calendar, Outlook, Microsoft Exchange, iCloud, and Notion calendars, consolidating all events in one place.
SourceOutlook 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.
SourceApple Calendar: Does Apple Calendar include artificial intelligence features?
Yes. iOS 26 introduced Apple Intelligence features in Calendar including intelligent event suggestions by analyzing email and messages, and conflict detection with alternative time suggestions.
SourceOutlook 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.
SourceApple Calendar: How does Apple Calendar integrate with other Apple services?
Apple Calendar integrates with Apple Maps for travel time alerts, Reminders for task management, Siri for voice control, and Contacts for attendee information.
Source