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Calendars · head to head

Outlook Calendar vs Teamgantt

Outlook Calendar logo

Outlook Calendar

Calendars

Professional calendar management for Microsoft 365

From
Free
Rated
-
Full reviewWebsite
Teamgantt logo

Teamgantt

Project Management

Collaborative Gantt chart software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Outlook Calendar offline support limited to only past 30 days of events, older events unavailable; Teamgantt the free plan is limited to 1 project and 40 tasks
  • They diverge on capability: Outlook Calendar covers Meeting scheduling, Teamgantt covers Gantt charts.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Outlook Calendar and Teamgantt differ
AttributeOutlook CalendarTeamgantt
Pricing modelUnknownsubscription
PlatformsWeb, Windows, macOS, iOS, AndroidWeb
CategoryCalendarsProject Management
Founded19752010

Identical on both: starting price (Free), free tier (Yes), 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 Teamgantt

  • Gantt charts
  • Dependencies
  • Milestones
  • Baselines
  • Time tracking
  • Trello
  • Dropbox
  • SSL encryption

Both cover

  • Slack
  • Web support

What people use each for

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

Outlook Calendar

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

Teamgantt

  • Project and task managementnot Outlook Calendar
  • Gantt chart planning and schedulingnot 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

Teamgantt

  • The free plan is limited to 1 project and 40 tasks
  • Pricing is per project rather than per user, so cost scales with how much work is tracked
  • The Basic plan at $10 a month allows a single manager
  • Project health reports, cost loaded scheduling and custom boards are paid add ons on Basic at $12 to $24 a month each
  • The Builder Edition advertises $99 a month and rises to $199 after 3 months

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

Teamgantt

Free
  • PersonalFree
    • 1 user
    • 1 project
    • 40 tasks
  • Basic$24/month
    • 1 manager
    • 10 collaborators
    • 2 projects included
  • Business$120/month
    • Unlimited managers and collaborators
    • 500 tasks per project
    • 5 projects included
  • Builder Edition$199/month
    • Unlimited everything
    • Industry-specific tools
    • Personalized onboarding

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 Teamgantt if

  • You need gantt charts.
  • You want to start without paying.
  • You also want dependencies.
Teamgantt review

Questions people ask

Is Outlook Calendar or Teamgantt better?
Neither clearly leads. Outlook Calendar starts at Free and Teamgantt at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Outlook Calendar or Teamgantt?
Outlook Calendar starts at Free and Teamgantt at Free.
Does Outlook Calendar or Teamgantt run on more platforms?
Outlook Calendar runs on Web, Windows, macOS, iOS, Android. Teamgantt runs on Web.
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. Of those, scheduling and appointment booking are not what Teamgantt is typically brought in for.
What can Outlook Calendar do that Teamgantt cannot?
Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. Teamgantt covers Gantt charts, Dependencies, Milestones, Baselines. Both handle Slack, Web 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.

Source
Teamgantt: How much does TeamGantt cost?

TeamGantt offers a free Personal plan (1 user, 1 project). Paid plans start at $24/month for Basic and go up to $199/month for Builder Edition.

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
Teamgantt: Does TeamGantt have a free trial?

Yes, TeamGantt provides a 14-day free trial with full access to any paid plan features, though credit card is required to start.

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
Teamgantt: Can I cancel TeamGantt anytime?

Yes, TeamGantt has no long-term contracts and allows users to cancel anytime or downgrade to the free Personal plan.

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
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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