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Calendars · head to head

Outlook Calendar vs Zeeg

Outlook Calendar logo

Outlook Calendar

Calendars

Professional calendar management for Microsoft 365

From
Free
Rated
-
Full reviewWebsite
Zeeg logo

Zeeg

Scheduling

German-hosted scheduling with GDPR positioning and CRM features built into the upper tiers

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; Zeeg single sign-on and SCIM only appear on the Scale tier at EUR 30 per user per month, so an organisation that needs identity governance for a hundred occasional bookers pays a premium tier price for every one of them.
  • They diverge on capability: Outlook Calendar covers Meeting scheduling, Zeeg covers European hosting.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

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

Attributes where Outlook Calendar and Zeeg differ
AttributeOutlook CalendarZeeg
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 Zeeg

  • European hosting
  • Free tier
  • Round robin
  • CRM essentials
  • Calendar sync
  • API and webhooks
  • SSO and SCIM
  • Payments

What people use each for

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

Outlook Calendar

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

Zeeg

  • A German or Austrian company whose data protection officer will not approve an American scheduling processor for calendar and contact datanot Outlook Calendar
  • A European sales team that wants round robin routing and CRM fields without paying enterprise rates for a separate revenue toolnot Outlook Calendar
  • A recruiter running interview scheduling across a panel with collective and group event typesnot Outlook Calendar
  • A consultancy that charges for initial calls and wants payment collected at the point of booking in eurosnot 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

Zeeg

  • Single sign-on and SCIM only appear on the Scale tier at EUR 30 per user per month, so an organisation that needs identity governance for a hundred occasional bookers pays a premium tier price for every one of them.
  • Round robin routing, which many teams treat as the basic reason to buy a team scheduler, is held back to Business at EUR 16 per user, well above where competitors place it.
  • The integration catalogue and surrounding ecosystem are much smaller than Calendly, so a workflow that depends on a niche CRM or an existing Zapier-style recipe may need building rather than switching on.
  • There are no native mobile apps, so staff manage availability and bookings through the browser, which is workable but noticeably weaker for people scheduling from the road.
  • The CRM features are light by design and will not replace a real pipeline tool, so teams risk splitting contact data between Zeeg and their actual CRM and then reconciling it.

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

Zeeg

Free
  • StarterFree
    • Free forever
    • Unlimited event types
    • Video conferencing links
  • Professional$10/month
    • Per user, billed annually; EUR 12 billed monthly
    • API and webhooks
    • CRM essentials
  • Business$16/month
    • Per user, billed annually; EUR 20 billed monthly
    • Round-robin routing
    • CRM integrations
  • Scale$30/month
    • Per user, billed annually; EUR 40 billed monthly
    • Custom objects
    • SSO and SCIM provisioning

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 Zeeg if

  • You need european hosting.
  • You want to start without paying.
  • You also want free tier.
Zeeg review

Questions people ask

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

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
Zeeg: Where is Zeeg data hosted?

On European infrastructure, with GDPR compliance and EU data residency as the product core positioning. This is the main reason European buyers shortlist it over American alternatives.

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
Zeeg: What does the free plan include?

Unlimited event types, calendar sync and video conferencing links at no cost, which is more generous than most free scheduling tiers.

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
Zeeg: When do I need the expensive tiers?

Round robin arrives at Business, EUR 16 per user per month annually. Single sign-on and SCIM only at Scale, EUR 30 per user per month annually.

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
Zeeg: Does it have mobile apps?

No native apps. Zeeg is used through the browser.

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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