Software · head to head
Outlook Calendar vs Microsoft To Do

Outlook Calendar
Software
Professional calendar management for Microsoft 365
- From
- Free
- Rated
- -
The short version
- They diverge on capability: Outlook Calendar covers Meeting scheduling, Microsoft To Do covers My Day suggestions.
Where they differ
Only the attributes on which Outlook Calendar and Microsoft To Do actually diverge.
| Attribute | Outlook Calendar | Microsoft To Do |
|---|---|---|
| Pricing model | Unknown | free |
| Platforms | Web, Windows, macOS, iOS, Android | Web, Ios, Android, Windows, Macos |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown), founded (1975).
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
- OneDrive
- SharePoint
- Slack
Only in Microsoft To Do
- My Day suggestions
- List sharing
- Steps
- Due dates
- Reminders
- Outlook
- Microsoft 365
- Cortana
Both cover
- Microsoft Teams
- Web support
- Windows support
- Macos support
- Ios support
- Android 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
Microsoft To Do
- 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
Microsoft To Do
Nothing recorded yet. See the Microsoft To Do review.
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
Microsoft To Do
Free- FreeFree
- Unlimited tasks
- My Day
- List sharing
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 Microsoft To Do if
- You need my day suggestions.
- You want to start without paying.
- You work on Web, Ios, Android, Windows, Macos.
- You also want list sharing.
Questions people ask
- Is Outlook Calendar or Microsoft To Do better?
- Neither clearly leads. Outlook Calendar starts at Free and Microsoft To Do at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Outlook Calendar or Microsoft To Do?
- Outlook Calendar starts at Free and Microsoft To Do at Free.
- Does Outlook Calendar or Microsoft To Do run on more platforms?
- Outlook Calendar runs on Web, Windows, macOS, iOS, Android. Microsoft To Do runs on Web, Ios, Android, Windows, 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 Microsoft To Do cannot?
- Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. Microsoft To Do covers My Day suggestions, List sharing, Steps, Due dates. Both handle Microsoft Teams, Web support, Windows support, Macos 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.
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.
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.
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.
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.
SourceRelated pages
More on Outlook Calendar
More on Microsoft To Do
Keep looking
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