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Calendar & Time Management · head to head

Outlook Calendar vs Quo

Outlook Calendar logo

Outlook Calendar

Calendar & Time Management

Professional calendar management for Microsoft 365

From
Free
Rated
-
Full reviewWebsite
Quo logo

Quo

Communication & Collaboration

Formerly OpenPhone

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; Quo unlimited calling to US and Canadian numbers is subject to a Fair Usage Policy rather than being truly unlimited

Where they differ

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

Attributes where Outlook Calendar and Quo differ
AttributeOutlook CalendarQuo
Pricing modelUnknownfreemium
PlatformsWeb, Windows, macOS, iOS, AndroidWeb
CategoryCalendar & Time ManagementCommunication & Collaboration
Founded1975Unknown

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 Quo

Nothing recorded that Outlook Calendar does not also cover.

What people use each for

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

Outlook Calendar

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

Quo

No use cases recorded yet. See the Quo review.

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

Quo

  • Unlimited calling to US and Canadian numbers is subject to a Fair Usage Policy rather than being truly unlimited
  • Starter tier's $15/user annual rate requires prepaying annually; monthly billing costs $19/user, about 27% more
  • The Sona AI agent automation credits are capped at 1,000 free per plan before additional usage is billed

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

Quo

Free

No published plan breakdown. See the Quo 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.
Outlook Calendar review

Choose Quo if

  • You want to start without paying.
Quo review

Questions people ask

Is Outlook Calendar or Quo better?
Neither clearly leads. Outlook Calendar starts at Free and Quo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Outlook Calendar or Quo?
Outlook Calendar starts at Free and Quo at Free.
Does Outlook Calendar or Quo run on more platforms?
Outlook Calendar runs on Web, Windows, macOS, iOS, Android. Quo 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 Quo is typically brought in for.
What can Outlook Calendar do that Quo cannot?
Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing.

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
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
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
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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Related pages

More on Outlook Calendar

More on Quo

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