Software · head to head
Outlook Calendar vs ProofHub

Outlook Calendar
Software
Professional calendar management for Microsoft 365
- From
- Free
- Rated
- -

ProofHub
Software
All-in-one project management and team collaboration
- From
- On request
- Rated
- -
The short version
- Only Outlook Calendar has a free tier, so it costs nothing to try first.
- Each has a real cost: Outlook Calendar offline support limited to only past 30 days of events, older events unavailable; ProofHub the Ultimate Control plan advertises $89 a month for the first 3 months and then charges $135, so the headline is an introductory rate
- They diverge on capability: Outlook Calendar covers Meeting scheduling, ProofHub covers Tasks.
Where they differ
Only the attributes on which Outlook Calendar and ProofHub actually diverge.
| Attribute | Outlook Calendar | ProofHub |
|---|---|---|
| Starting price | Free | On request |
| Pricing model | Unknown | subscription |
| Free tier | Yes | No |
| Platforms | Web, Windows, macOS, iOS, Android | Web, Ios, Android |
| Founded | 1975 | 2011 |
Identical on both: 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 ProofHub
- Tasks
- Discussions
- Proofing
- Time tracking
- Gantt charts
- Google Drive
- Dropbox
- Box
Both cover
- Slack
- Web support
- Ios support
- Android support
What people use each for
The jobs each tool is most often brought in to do.
Outlook Calendar
- Schedulingnot ProofHub
- Appointment bookingnot ProofHub
- Time trackingnot ProofHub
- Resource managementnot ProofHub
- Team coordinationnot ProofHub
ProofHub
- Project management with unlimited users on a flat monthly feenot Outlook Calendar
- Proofing and reviewing files alongside task and discussion trackingnot 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
ProofHub
- The Ultimate Control plan advertises $89 a month for the first 3 months and then charges $135, so the headline is an introductory rate
- The Essential plan caps projects at 40 and storage at 15 GB
- Storage is 100 GB even on the higher plan, which is low for a tool holding project files
- There is no free tier, and the entry price is a flat $45 a month billed annually
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
ProofHub
On request- Essential$45/month
- 40 projects
- Unlimited users
- Core features
- Ultimate Control$89/month
- Unlimited projects
- Advanced features
- White labeling
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 ProofHub if
- You need tasks.
- You work on Web, Ios, Android.
- You also want discussions.
Questions people ask
- Is Outlook Calendar or ProofHub better?
- Neither clearly leads. Outlook Calendar starts at Free and ProofHub at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Outlook Calendar or ProofHub?
- Outlook Calendar has a free tier; the other does not. Paid plans start at Free for Outlook Calendar and On request for ProofHub.
- Does Outlook Calendar or ProofHub run on more platforms?
- Outlook Calendar runs on Web, Windows, macOS, iOS, Android. ProofHub runs on Web, Ios, Android.
- Can I use Outlook Calendar for free?
- Yes. Outlook Calendar has a free tier, so you can try it without paying. ProofHub starts at On request.
- 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 ProofHub is typically brought in for.
- What can Outlook Calendar do that ProofHub cannot?
- Outlook Calendar covers Meeting scheduling, Shared calendars, Room booking, Availability sharing. ProofHub covers Tasks, Discussions, Proofing, Time tracking. Both handle Slack, Web support, Ios support, Android 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
Keep looking
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- ProofHub vs Float
- ProofHub vs Google Tasks
- ProofHub vs YouCanBook.me
- ProofHub vs Cron Calendar
- ProofHub vs Harvest Forecast
- ProofHub vs Resource Guru
- ProofHub vs SavvyCal
- ProofHub vs Skedda
- ProofHub vs Timepage
- ProofHub vs Woven
- ProofHub vs Assistant.to
- ProofHub vs Basecamp
- ProofHub vs Clockwise
- ProofHub vs Reclaim.ai
- ProofHub vs Trello
- ProofHub vs Roadmunk
- ProofHub vs Toggl Plan
- ProofHub vs GanttPRO
- ProofHub vs MeisterTask
- ProofHub vs Sunsama
- ProofHub vs Craft Docs
- ProofHub vs Freedcamp
- ProofHub vs Hive
- ProofHub vs Kanbanize
- ProofHub vs LiquidPlanner
- ProofHub vs Nifty
- ProofHub vs Paymo
- ProofHub vs Pipefy
- ProofHub vs Podio
