Zoho Calendar vs KOrganizer

Zoho Calendar9.1Visit KOrganizer8.6Visit

Higher score Zoho Calendar #3 in Calendar Apps 9.1/10 Free plan Free plan✓ 4 of 4 features Visit Zoho Calendar

vs

KOrganizer #8 in Calendar Apps 8.6/10 Free plan Free plan✓ 1 of 4 features Visit KDE

• Zoho Calendar fits best

  Budget-conscious teams needing rich scheduling

• KOrganizer fits best

  Linux users needing open-source group calendaring

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Side by side

Feature	Zoho Calendar 9.1/10 Visit ↗	KOrganizer 8.6/10 Visit ↗
At a glance
Editor score	9.1	8.6
Ranking	#3 in Calendar Apps	#8 in Calendar Apps
Best for	Budget-conscious teams needing rich scheduling	Linux users needing open-source group calendaring
Pricing model	Free plan + paid	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Mobile	Desktop
Platforms	Web, iOS, Android	Linux
Support	Email, Live chat, Phone · 24/7	Community, Docs, Email
Integrations	15 integrations	8 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market
Features Zoho Calendar 4/4 · KOrganizer 1/4
Shared calendars	✓	✓
Time blocking	✓ (best)	Not checked yet
Scheduling links	✓ (best)	Not checked yet
Video meeting support	✓ (best)	Not checked yet
Specs
Calendar sync	Two_way	Two_way
Mobile apps	Ios and android	Not checked yet
Our review
Pros	Free standalone plan plus $1 annual entry tier Two-way Google and Outlook Calendar synchronization Booking pages, room booking, and video-conferencing integrations	Free and open source under the GPL-2.0-or-later license Group scheduling includes invitations, responses, and free/busy data Supports CalDAV, Google Calendar, Nextcloud, Kolab, and more
Cons	Paid Calendar access is bundled with Zoho Mail plans The Free plan is positioned for individuals and small teams Calendar capabilities are closely tied to the Zoho ecosystem	Officially available only as a Linux desktop application No mobile apps for calendar access away from the desktop Does not include verified booking links or time-blocking tools
Our verdict	Zoho Calendar is a web-based scheduling application for individuals and teams. It covers event creation, invitations, RSVPs, reminders, recurring events, participant availability, shared calendars, group calendars, resource booking, and… Read the review →	KOrganizer is KDE’s calendar and scheduling component for Kontact, designed for Linux desktop users who need more than basic event entry. It brings together events, to-dos, journals, reminders, recurring appointments, multiple calendars,… Read the review →

Strengths and trade-offs

• Zoho Calendar — where it wins

  • Free standalone plan plus $1 annual entry tier
  • Two-way Google and Outlook Calendar synchronization
  • Booking pages, room booking, and video-conferencing integrations

  Where it doesn't

  • Paid Calendar access is bundled with Zoho Mail plans
  • The Free plan is positioned for individuals and small teams
  • Calendar capabilities are closely tied to the Zoho ecosystem

• KOrganizer — where it wins

  • Free and open source under the GPL-2.0-or-later license
  • Group scheduling includes invitations, responses, and free/busy data
  • Supports CalDAV, Google Calendar, Nextcloud, Kolab, and more

  Where it doesn't

  • Officially available only as a Linux desktop application
  • No mobile apps for calendar access away from the desktop
  • Does not include verified booking links or time-blocking tools

• Zoho Calendar9.1/10 · Free plan

  A low-cost calendar with booking, sync, room reservations, and broad integrations.

  Visit Zoho CalendarFull verdict →
• KOrganizer8.6/10 · Free plan

  A capable Linux group calendar for users who value open standards and source freedom.

  Visit KDEFull verdict →