Calendar & Time Management · head to head
Microsoft To Do vs Outlook Calendar
Microsoft To Do
Calendar & Time Management
Your personal task management app
- From
- Free
- Rated
- -

Outlook Calendar
Calendar & Time Management
Professional calendar management for Microsoft 365
- From
- Free
- Rated
- -
The short version
- They diverge on capability: Microsoft To Do covers My Day suggestions, Outlook Calendar covers Meeting scheduling.
Where they differ
Only the attributes on which Microsoft To Do and Outlook Calendar actually diverge.
| Attribute | Microsoft To Do | Outlook Calendar |
|---|---|---|
| Pricing model | free | Unknown |
| Platforms | Web, Ios, Android, Windows, Macos | Web, Windows, macOS, iOS, Android |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Calendar & Time Management), 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 Microsoft To Do
- My Day suggestions
- List sharing
- Steps
- Due dates
- Reminders
- Outlook
- Microsoft 365
- Cortana
Only in Outlook Calendar
- Meeting scheduling
- Shared calendars
- Room booking
- Availability sharing
- Recurring events
- OneDrive
- SharePoint
- Slack
Both cover
- Microsoft Teams
- Web support
- Ios support
- Android support
- Windows support
- Macos support
What people use each for
The jobs each tool is most often brought in to do.
Microsoft To Do
- 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.
Microsoft To Do
Nothing recorded yet. See the Microsoft To Do review.
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
Microsoft To Do
Free- FreeFree
- Unlimited tasks
- My Day
- List sharing
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 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.
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.
Questions people ask
- Is Microsoft To Do or Outlook Calendar better?
- Neither clearly leads. Microsoft To Do starts at Free and Outlook Calendar at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Microsoft To Do or Outlook Calendar?
- Microsoft To Do starts at Free and Outlook Calendar at Free.
- Does Microsoft To Do or Outlook Calendar run on more platforms?
- Microsoft To Do runs on Web, Ios, Android, Windows, Macos. Outlook Calendar runs on Web, Windows, macOS, iOS, Android.
- Can I use Microsoft To Do for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Microsoft To Do best used for?
- Microsoft To Do is most often used for scheduling, appointment booking, time tracking, resource management.
- What can Microsoft To Do do that Outlook Calendar cannot?
- Microsoft To Do covers My Day suggestions, List sharing, Steps, Due dates. Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. Both handle Microsoft Teams, Web support, Ios support, Android 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 Microsoft To Do
More on Outlook Calendar
Other head to heads
- Microsoft To Do vs Google Calendar
- Microsoft To Do vs Apple Calendar
- Microsoft To Do vs Fantastical
- Microsoft To Do vs Clockify
- Microsoft To Do vs OmniFocus
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- Microsoft To Do vs Float
- Microsoft To Do vs Google Tasks
- Microsoft To Do vs YouCanBook.me
- Microsoft To Do vs Cron Calendar
- Microsoft To Do vs Harvest Forecast
- Microsoft To Do vs Resource Guru
- Microsoft To Do vs SavvyCal
- Microsoft To Do vs Skedda
- Microsoft To Do vs Timepage
- Microsoft To Do vs Woven
- Microsoft To Do vs Assistant.to
- Outlook Calendar vs Google Calendar
- Outlook Calendar vs Apple Calendar
- Outlook Calendar vs Fantastical
- Outlook Calendar vs Clockify
- Outlook Calendar vs OmniFocus
- Outlook Calendar vs Amie
- Outlook Calendar vs Float
- Outlook Calendar vs Google Tasks
- Outlook Calendar vs YouCanBook.me
- Outlook Calendar vs Cron Calendar
- Outlook Calendar vs Harvest Forecast
- Outlook Calendar vs Resource Guru
- Outlook Calendar vs SavvyCal
- Outlook Calendar vs Skedda
- Outlook Calendar vs Timepage
- Outlook Calendar vs Woven
- Outlook Calendar vs Assistant.to
