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Calendars · head to head

Outlook Calendar vs Smartsheet

Outlook Calendar logo

Outlook Calendar

Calendars

Professional calendar management for Microsoft 365

From
Free
Rated
-
Full reviewWebsite
Smartsheet logo

Smartsheet

Construction

The platform for dynamic work

From
$9/month
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: Outlook Calendar offline support limited to only past 30 days of events, older events unavailable; Smartsheet formulas lack Excel robustness; complex data manipulation hits performance limits
  • They diverge on capability: Outlook Calendar covers Meeting scheduling, Smartsheet covers Grid, card, Gantt & calendar views.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Outlook Calendar and Smartsheet differ
AttributeOutlook CalendarSmartsheet
Starting priceFree$9/month
Free tierYesNo
PlatformsWeb, Windows, macOS, iOS, AndroidWeb, iOS, Android
CategoryCalendarsConstruction
Founded19752005

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

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 Smartsheet

  • Grid, card, Gantt & calendar views
  • Automated workflows
  • Forms & data collection
  • Resource management
  • Dashboards & reporting
  • Proofing & approvals
  • Document generation
  • Integration platform

Both cover

  • Slack

What people use each for

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

Outlook Calendar

  • Schedulingnot Smartsheet
  • Appointment bookingnot Smartsheet
  • Time trackingnot Smartsheet
  • Resource managementnot Smartsheet
  • Team coordinationnot Smartsheet

Smartsheet

  • Project portfolio managementnot Outlook Calendar
  • IT project managementnot Outlook Calendar
  • Marketing campaignsnot Outlook Calendar
  • Product launchesnot Outlook Calendar
  • Process automationnot Outlook Calendar

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

Smartsheet

  • Formulas lack Excel robustness; complex data manipulation hits performance limits
  • Gantt chart customization is limited with poor handling of part-time resource allocation
  • Expensive pricing compared to other project management tools; collaboration features are paid-only
  • Limited offline access and minimal mobile functionality compared to modern competitors

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

Smartsheet

$9/month
  • Pro$9/month
    • Core project management
    • Automation
    • 1-10 members
  • Business$19/month
    • Advanced automation
    • Portfolio management
    • 3+ members

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.
Outlook Calendar review

Choose Smartsheet if

  • You need grid, card, gantt & calendar views.
  • You work on Web, iOS, Android.
  • You also want automated workflows.
Smartsheet review

Questions people ask

Is Outlook Calendar or Smartsheet better?
Neither clearly leads. Outlook Calendar starts at Free and Smartsheet at $9/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Outlook Calendar or Smartsheet?
Outlook Calendar has a free tier; the other does not. Paid plans start at Free for Outlook Calendar and $9/month for Smartsheet.
Does Outlook Calendar or Smartsheet run on more platforms?
Outlook Calendar runs on Web, Windows, macOS, iOS, Android. Smartsheet runs on Web, iOS, Android.
Can I use Outlook Calendar for free?
Yes. Outlook Calendar has a free tier, so you can try it without paying. Smartsheet starts at $9/month.
What is Outlook Calendar best used for?
Outlook Calendar is most often used for scheduling, appointment booking, time tracking, resource management. Of those, scheduling and appointment booking are not what Smartsheet is typically brought in for.
What can Outlook Calendar do that Smartsheet cannot?
Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. Smartsheet covers Grid, card, Gantt & calendar views, Automated workflows, Forms & data collection, Resource management. Both handle Slack.

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.

Source
Smartsheet: What is Smartsheet pricing for a construction team?

Smartsheet Pro starts at $9 per user per month (annual billing) for 1-10 members. A construction company can deploy Business plan for 18 licensed users at $19 per user plus unlimited free collaborators (subcontractors, clients) for a typical monthly cost around $576.

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
Smartsheet: Does Smartsheet work offline?

No. Smartsheet has minimal offline access and requires internet connectivity for full functionality.

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
Smartsheet: What integrations does Smartsheet support?

Smartsheet integrates with Slack, Microsoft Teams, Microsoft 365, Google Workspace, Jira, Salesforce, Dynamics 365, Tableau, Power BI, DocuSign, Box, Dropbox, plus Zapier and Make for no-code automation.

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
Smartsheet: Can I use Smartsheet formulas like Excel?

Smartsheet formulas lack the robustness of Excel. Complex nested functions or large-scale data manipulation often hit performance limits, requiring multiple helper columns.

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
Smartsheet: Does Smartsheet have a free plan?

No. Smartsheet Pro starts at $9 per user per month (annual billing). There is a free trial available, but no perpetual free plan.

Source
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