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Calendars · head to head

Outlook Calendar vs Zcal

Outlook Calendar logo

Outlook Calendar

Calendars

Professional calendar management for Microsoft 365

From
Free
Rated
-
Full reviewWebsite
Zcal logo

Zcal

Scheduling

Scheduling with an unusually large free tier and heavy branding control

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; Zcal zcal branding stays on the free booking page, so the tier that is otherwise generous is not usable as a customer facing page for a business that cares how it looks.
  • They diverge on capability: Outlook Calendar covers Meeting scheduling, Zcal covers Unlimited booking links.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Outlook Calendar and Zcal differ
AttributeOutlook CalendarZcal
Pricing modelUnknownPer user per month
PlatformsWeb, Windows, macOS, iOS, AndroidWeb
CategoryCalendarsScheduling
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 Zcal

  • Unlimited booking links
  • Branded booking pages
  • Meeting polls
  • Group events
  • Round robin and collective
  • SMS reminders
  • Paid bookings

What people use each for

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

Outlook Calendar

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

Zcal

  • A consultant who runs several different meeting types and refuses to pay a subscription for the privilege of having more than one booking linknot Outlook Calendar
  • A coach or recruiter who wants a branded page with a welcome video and intake questions before the call happensnot Outlook Calendar
  • A small team that needs round robin distribution of inbound calls without buying a full sales engagement platformnot Outlook Calendar
  • Anyone taking payment at the point of booking, where the Stripe connection removes an invoicing step afterwardsnot 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

Zcal

  • Zcal branding stays on the free booking page, so the tier that is otherwise generous is not usable as a customer facing page for a business that cares how it looks.
  • Paid tier prices are not stated plainly in the product documentation and third party sources disagree on the figure, so the paid step up has to be confirmed on the vendor pricing page before budgeting for a team.
  • SMS reminders are credit metered on paid tiers, so a high volume booker can exhaust the allowance and be pushed up a tier by message count rather than by needing any feature.
  • The integration list is short next to established competitors, and there is no deep native CRM object writing, so a sales team that wants bookings to create and update CRM records will need automation glue.
  • It is a small vendor in a category dominated by much larger companies, which is fine for a personal booking link and a real consideration if booking is a core business process you cannot afford to migrate off in a hurry.

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

Zcal

Free
  • Free ForeverFree
    • Unlimited booking links
    • Unlimited connected calendar accounts
    • Meeting polls and group events
  • Pro$undefined/month
    • Per user per month, priced on the vendor pricing page
    • Team creation and team pages
    • Round robin and collective events
  • Business$undefined/month
    • Per user per month, priced on the vendor pricing page
    • Everything in Pro
    • Custom domain and custom sending email domain

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 Zcal if

  • You need unlimited booking links.
  • You want to start without paying.
  • You also want branded booking pages.
Zcal review

Questions people ask

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

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
Zcal: Is the free plan actually usable?

Yes. Unlimited booking links and unlimited calendar connections, which is more than most competitors allow, but Zcal branding stays on the page.

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
Zcal: What do you pay for?

Team features, round robin and collective events, branding removal, custom fonts, SMS reminders and custom domains.

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
Zcal: Can I take payment for bookings?

Yes, through the Stripe connection at the point of booking.

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
Zcal: Does it do round robin?

Yes, on the paid tiers. Round robin and collective events are not on the free plan.

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

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