Virto Calendar On-Premisesfor SharePoint Server

Overlay Outlook, SharePoint lists, Google Calendar, SQL tables and XML feeds in one color-coded SharePoint calendar.

Try Free for 30 Days Documentation

★★★★★

4.8 (100+ reviews)

Key features:

Multi-Source Calendar Overlay

Combine SharePoint lists, Outlook, Exchange, SQL, XML, and iCal sources into one unified calendar view.

Real-Time Outlook Sync

Two-way synchronization with Outlook — edit an event anywhere and see it reflected instantly everywhere.

Flexible Views & Color Coding

Switch between daily, weekly, monthly, and Gantt views. Color-code categories for instant visual clarity.

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Moving to SharePoint Server Subscription Edition?

Microsoft ended support for SharePoint Server 2016 and 2019 on July 14, 2026. Virto Calendar On-Premises runs on Subscription Edition: the current build is version 9.1.12. While your updates and support are active, moving your licence costs 25% of the full licence price; once they have ended, it takes a new licence. Tell us about your farm and we will plan the move with you.

Plan My SE Upgrade Get the SE Installer

What is Virto Calendar On-Premises?

Virto Calendar On-Premises is an enterprise-grade SharePoint calendar app that consolidates multiple data sources — including SharePoint lists, Outlook, any internet calendar, SQL Tables, and XML — into a single view. Unlike native SharePoint calendars, Virto allows users to view, edit, and overlay events from different sources in real time.

Why Enterprises Choose Virto Calendar On-Premises

Overlay All Calendars in One View

Unify team vacation plans, project milestones, and shared resources with one click. Combines all event data in a single synchronized interface.

Sync Directly with Outlook

Keep productivity flowing. Manage tasks and meetings without context switching — when you edit an event in Outlook, it's instantly reflected in Virto Calendar.

Customize Views and Color Codes

Quickly identify overlaps and dependencies by color-coding categories. Configure calendar types, filters, and display options to fit your workflow.

Comparison: Virto Calendar On-Premises vs Native SharePoint Calendars

Data Sources

Single SharePoint list

Unlimited: SharePoint lists, Outlook, XML, SQL Tables, internet calendars (iCal format)

Visualization

Basic views

Color-coded overlays, multiple views, Gantt mode

Outlook Sync

Manual, limited

Two-way synchronization

Customization

Minimal

Advanced color themes, category filters, permission control

Legacy SharePoint Support

Partial

Full support: 2013, 2016, 2019, SE

Upgrade your scheduling from visibility gaps to total calendar harmony.

Try Virto Calendar On-Premises Today

Use cases

Explore the versatility of Virto Calendar On-Premises through these real-world scenarios:

Team and Project Calendar

Maximize project visibility and coordination across teams with Virto Calendar, streamlining workflow and simplifying stakeholder communication.

Employee Vacation Tracker

Virto Calendar App shows approved leave next to the public holidays of every country your team works in — who is away, and which offices are closed.

Rooms & Equipment Calendar

Combine rooms, offices, vehicles and equipment in one Microsoft 365 calendar, with the maintenance jobs and blackout periods that make them unavailable.

View All Use Cases →

Technical & Enterprise Readiness

Virto Calendar On-Premises is built for enterprise-grade reliability and seamless integration into existing SharePoint farm solutions.

Compatibility: SharePoint 2013 / 2016 / 2019 / SE

Architecture

Three-tier architecture
High-availability SQL clustering
Full-trust code and local deployment
Service application and zone configuration support

Deployment: On-premises only (no external dependencies)

The functions and interface may not seem so obvious to the novice user from the first sign. Still, I love the feature of this sharepoint calendar web part to use a compact view of the Virto Calendar with the same data on my SharePoint site pages. Viewing all events from different data sources in one place is vital for my work.

Nice calendar, works pretty stable, many features and overlay possibilities, I use .ics external calendars a lot and this app is perfect for it. I don't regret purchasing.

I love how it looks on SharePoint site and how it gives an overview of tasks! Simple and ingenious.

Sized to fit your business

Choose the perfect plan to match your business needs.

RECOMMENDED

Pro

$ 1,749 per WFE

50% discount from the second year

Request

For mid-size businesses that need a unified calendar overlay across SharePoint, Outlook, and external data sources.

Help & learning content
Global web ticketing support
Up to 72 hours of response time
One support contact

Enterprise

For large organizations needing advanced features and enterprise-grade security and controls.

All Pro plan features
Priority support
Microsoft Teams support sessions
Technical account manager
Up to 24 hours of response time
Unlimited number of support contacts
Customer success manager
Consulting sessions

Need your IT team's approval?

Send them the brief: what runs in your farm and what leaves it, how the products install, security testing and cost.

Send to your IT team Open the IT brief

Good to know

Installation and documentation
Setup steps, video guides, FAQs and troubleshooting articles in our documentation.
Documentation →
Perpetual licence
Yours to keep. The first year of updates and support is included, then renews at 50% of the price.
Moving to Subscription Edition
Moving your licence to SharePoint Server Subscription Edition, or to another SharePoint version, costs 25% of the full licence price while updates and support are active. Once they have ended, you buy a new licence.
Your data
The web part runs inside your SharePoint farm; your content stays on your servers.
Trust & Security Center →
Discounts and quotes
15% off for education, healthcare and charities; custom quotes for larger organisations.
Talk to sales →

The pricing outlined herein is valid only as to new purchases occurring on or after June 1, 2024. VirtoSoftware reserves the right to adjust its packaging and pricing at any time.

Mastering SharePoint Calendars

Improve your SharePoint calendar skills with tutorials and guides from VirtoSoftware's knowledge hub.

FAQ

SharePoint Server Calendar Management

Is Virto Calendar On-Premises better than the default SharePoint calendar?

Yes. Unlike the native SharePoint calendar, Virto supports multiple data overlays, real-time Outlook sync, and customizable color-coded views — all designed for enterprise scalability.

Can I overlay multiple SharePoint and Outlook calendars?

Absolutely. You can connect unlimited SharePoint lists, Outlook and Exchange calendars, SQL tables, XML and iCal feeds on one screen.

Does it work with Modern SharePoint?

Yes. Virto Calendar On-Premises fully supports both Classic and Modern experiences across SharePoint 2019 and SharePoint Server Subscription Edition.

Is this solution secure for on-premises environments?

Virto Calendar operates entirely within your SharePoint farm, ensuring data never leaves your infrastructure.

Talk to our team

Need clarity on our app's suitability for you? Set up a quick call with us or chat via Microsoft Teams chat to explore its potential for your needs.

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