Software · head to head
Outlook Calendar vs VWO

Outlook Calendar
Software
Professional calendar management for Microsoft 365
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Outlook Calendar offline support limited to only past 30 days of events, older events unavailable; VWO growth plan restricted to 1 workspace and 0 custom attributes
- They diverge on capability: Outlook Calendar covers Meeting scheduling, VWO covers A/B testing.
Where they differ
Only the attributes on which Outlook Calendar and VWO actually diverge.
| Attribute | Outlook Calendar | VWO |
|---|---|---|
| Pricing model | Unknown | usage-based |
| Platforms | Web, Windows, macOS, iOS, Android | Web, iOS, Android, Server-side |
| Founded | 1975 | 2007 |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).
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 VWO
- A/B testing
- Multivariate testing
- Heatmaps
- Session recordings
- Analytics
- Google Analytics
- SSL encryption
- Cloud deployment
Both cover
- Slack
- Web support
What people use each for
The jobs each tool is most often brought in to do.
Outlook Calendar
- Schedulingnot VWO
- Appointment bookingnot VWO
- Time trackingnot VWO
- Resource managementnot VWO
- Team coordinationnot VWO
VWO
- A/B testing and multivariate testingnot Outlook Calendar
- Conversion rate optimisationnot Outlook Calendar
- Behavioural analytics and session recordingsnot Outlook Calendar
- Feature experimentation and progressive rolloutsnot 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
VWO
- Growth plan restricted to 1 workspace and 0 custom attributes
- Single Sign-On (SSO) and API access limited to Enterprise tier only
- Growth plan offers only 8-hour first response time for support
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
VWO
FreeNo published plan breakdown. See the VWO 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.
Choose VWO if
- You need a/b testing.
- You want to start without paying.
- You work on Web, iOS, Android, Server-side.
- You also want multivariate testing.
Questions people ask
- Is Outlook Calendar or VWO better?
- Neither clearly leads. Outlook Calendar starts at Free and VWO at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Outlook Calendar or VWO?
- Outlook Calendar starts at Free and VWO at Free.
- Does Outlook Calendar or VWO run on more platforms?
- Outlook Calendar runs on Web, Windows, macOS, iOS, Android. VWO runs on Web, iOS, Android, Server-side.
- 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 VWO is typically brought in for.
- What can Outlook Calendar do that VWO cannot?
- Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. VWO covers A/B testing, Multivariate testing, Heatmaps, Session recordings. 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.
SourceOutlook 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.
SourceOutlook 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.
SourceOutlook 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.
SourceOutlook 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.
SourceRelated pages
More on Outlook Calendar
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- VWO vs Cron Calendar
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- VWO vs Assistant.to
- VWO vs Crazy Egg
- VWO vs Ruler Analytics
- VWO vs Northbeam
- VWO vs Attribution
- VWO vs Countly
- VWO vs Dreamdata
- VWO vs Google Analytics
- VWO vs Triple Whale
- VWO vs AB Tasty
- VWO vs Adobe Analytics
- VWO vs Adverity
- VWO vs Convert
- VWO vs Datorama
- VWO vs Fathom Analytics
- VWO vs Funnel.io
- VWO vs Google Optimize
- VWO vs Improvado
- VWO vs June

