# VirtoSoftware — Virto Calendar: full page texts > Complete plain-text content of the key Virto Calendar pages on www.virtosoftware.com, published for LLM crawlers. Pricing is intentionally omitted — pricing facts live in https://www.virtosoftware.com/llms.txt. Review quotes and promotional blocks are omitted as well. Pages included: - https://www.virtosoftware.com/microsoft-365/virto-calendar-overlay-app/ - https://www.virtosoftware.com/microsoft-teams/virto-calendar-app/ - https://www.virtosoftware.com/virto-calendar-comparison/ --- # The Only Secure Enterprise Calendar Solution for Microsoft 365 URL: https://www.virtosoftware.com/microsoft-365/virto-calendar-overlay-app/ See all your Microsoft 365, Outlook, SharePoint and internet calendars in one color-coded view. Your calendar data stays in your own Microsoft 365 tenant. ## What is Virto Calendar App? Virto Calendar App is an enterprise-grade calendar overlay solution for Microsoft 365 and SharePoint Online. It consolidates multiple calendars—personal, team, departmental, or project-based—into a single unified, color-coded interface for real-time visibility and centralized planning. ## Core Use Cases - Overlay multiple SharePoint Online calendars — Combine multiple SharePoint lists or calendar sources from sites and subsites into a unified visual schedule. No need to switch between pages—everything is in one place. - Combine Outlook and Microsoft 365 calendars — Integrate Exchange Online and Microsoft 365 group events with your SharePoint calendars. Keep personal, team, and corporate events together for complete transparency. - Visualize shared calendars across teams and departments — Create department-level views that display events from Marketing, HR, IT, and Project teams simultaneously. Simplify resource coordination and avoid scheduling conflicts. ## Comparison: Native M365 Calendar vs Virto Calendar App - Calendar Sources: Microsoft 365 / SharePoint Calendar — Single-site or personal only. Virto Calendar App — Multiple Microsoft 365, Outlook & SharePoint sources + internet calendars like Google, iCloud, etc.. - Views: Microsoft 365 / SharePoint Calendar — Single-site or personal only. Virto Calendar App — Color-coded overlay, multi-source, customizable. - Coordination: Microsoft 365 / SharePoint Calendar — Manual. Virto Calendar App — Centralized and automated. - Audience: Microsoft 365 / SharePoint Calendar — Team-level. Virto Calendar App — Departmental and enterprise-scale. - Scalability: Microsoft 365 / SharePoint Calendar — Limited. Virto Calendar App — Enterprise-ready infrastructure. ## Technical & Enterprise Readiness - Full compatibility with Microsoft 365, SharePoint Online, and Exchange Online environments. - Flexible deployment — standard SaaS on Microsoft Azure (US) that processes your data without storing it, or Enterprise-tier custom deployment into your own infrastructure or Microsoft 365 tenant. - Secure architecture aligned with Microsoft 365 governance, identity management, and permission frameworks. - Enterprise scalability supporting large organizations, multi-departmental rollouts, and hybrid workforce scenarios. - Performance-optimized for real-time synchronization without exceeding Microsoft Graph or API rate limits. ## Mastering Microsoft 365 Calendars Improve your Microsoft 365 calendar skills with tutorials and guides from VirtoSoftware's knowledge hub. - : Learn how to synchronize and share calendars effectively across teams, and see how Virto overlays simplify complex scheduling. (https://www.virtosoftware.com/events/how-to-create-office-365-shared-calendar/) - How to Create an Office 365 Shared Calendar: Build shared group calendars and learn when to switch from native views to an overlay-powered interface like Virto Calendar App. (https://www.virtosoftware.com/events/how-to-create-office-365-shared-calendar/) - Top Shared Calendars for SharePoint Online: Evaluate built-in tools vs third-party calendars to identify when your organization needs an enterprise-grade planning solution. (https://www.virtosoftware.com/events/top-shared-calendars-for-sharepoint-online/) - SharePoint Calendar: How to Create and Add One: Build shared group calendars and learn when to switch from native views to an overlay-powered interface like Virto Calendar App. (https://www.virtosoftware.com/events/sharepoint-calendar/) ## FAQ — Microsoft 365 & SharePoint Online Calendar Management Q: Do people who only view the calendar need a license? A: Yes. Everyone who opens Virto Calendar App uses a license, whether they add events or only look at them. Count the people who will actually open the calendar, not everyone in your Microsoft 365 tenant. A license is assigned automatically the first time a person opens the app, and the 30-day cleaning option frees the licenses of people who have not opened it for 30 days. If most of your people only need to view a calendar, look at Virto Shared Calendar, where viewers never need a license. See: How Virto Calendar App licensing works — https://docs.virtosoftware.com/docs/calendar-overlay-pro/licensing-and-security/licensing/ Q: How many licenses do I need? A: One for each person who opens the calendar. One license covers the same person in SharePoint Online, in Microsoft Teams and in the browser, so nobody is counted twice. A license manager who only manages licenses and does not use the calendar needs none. The published plan covers up to 100 users; for more, we quote a plan for your number. See: Count your licenses — https://www.virtosoftware.com/#licence-calculator Q: Who can see and edit events in Virto Calendar App? A: Each person sees and edits only what their own Microsoft 365 rights allow in each source: a SharePoint list, an Outlook calendar, a group calendar. Two colleagues who open the same calendar can therefore see different events. Microsoft 365 group calendars show only to members of the group. See: Who sees what in Virto Calendar App — https://www.virtosoftware.com/microsoft-365-guides/virto-calendar-permissions/ Q: How do I manage multiple calendars in Microsoft 365? A: Native Microsoft 365 tools allow individual calendar sharing, but they lack a unified overlay. Virto Calendar App brings all calendars into one centralized view for streamlined coordination. Q: Is there a better SharePoint Online calendar than the default one? A: Yes. Native SharePoint calendars are site-specific and limited in visualization. Virto Calendar App overlays multiple SharePoint calendars, providing enhanced usability and visibility for enterprise teams. Q: Can I overlay Outlook and SharePoint calendars? A: Absolutely. Virto Calendar App integrates Outlook, Exchange, and SharePoint Online calendars into a single synchronized view—ideal for cross-departmental scheduling. Q: Where is my calendar data stored? A: Your calendar data stays where it already lives, in your own Microsoft 365 tenant (SharePoint lists, Exchange calendars, Planner) or in the internet calendars you connect. The app's backend runs on Microsoft Azure in the US and processes events in memory only; VirtoSoftware never stores your content. For Enterprise-tier customers, custom deployment into your own infrastructure or Microsoft 365 tenant is available. See: Trust & Security Center — https://docs.virtosoftware.com/docs/virtosoftware-trust-security-center/security-overview/ Q: Is Virto Calendar App verified by Microsoft? A: Virto Calendar App is published in the Microsoft commercial marketplace and has Microsoft Publisher Attestation — a self-assessment of its security, compliance, and data handling that Microsoft publishes on Microsoft Learn. Microsoft does not audit it, and the app does not hold Microsoft 365 Certification. Our security documents and the answers to your review are on the Security & Compliance page. See: Security & Compliance — https://www.virtosoftware.com/security-compliance/ --- # Microsoft Teams Calendar App for Smarter Team Scheduling URL: https://www.virtosoftware.com/microsoft-teams/virto-calendar-app/ Personal, team and project schedules in one calendar view inside Microsoft Teams — across channels, departments and Microsoft 365 groups. ## What is Virto Calendar App for Microsoft Teams? Virto Calendar App for Microsoft Teams is an enterprise calendar solution that improves native Teams scheduling. It merges multiple calendars across Teams channels, SharePoint, Exchange, and the internet, enabling unified and flexible planning for individuals and teams. ## Core Use Cases - Personal and Team Planning — Organize your individual and group tasks in a few clicks. Toggle between personal and shared schedules directly in Microsoft Teams, so that every team member stays aligned. - Channel Calendars — Add structured event calendars to specific Teams channels. Easily track project milestones, meetings, or shift rotations at the channel tab level. - Cross-Team Visibility — Gain a consolidated view of all company events — from department meetings to company-wide activities — accessible in one pane of glass within Teams. ## Comparison: Virto Calendar vs. Microsoft Teams Native Calendar - Multiple calendar sources: Microsoft Teams Calendar — Limited to Outlook. Virto Calendar App — Connects Exchange, SharePoint, Teams, Outlook, and any internet calendar. - Cross-team visibility: Microsoft Teams Calendar — Basic views only. Virto Calendar App — Unified enterprise dashboards. - Custom event types: Microsoft Teams Calendar — No. Virto Calendar App — Yes – flexible color coding and metadata. - Scalability: Microsoft Teams Calendar — For small teams. Virto Calendar App — Enterprise-grade performance. - Integration depth: Microsoft Teams Calendar — Limited. Virto Calendar App — Full Microsoft 365 / SharePoint integration. ## Resources & Guides - Microsoft Teams Calendar Guide: Learn key differences between personal, channel, and group calendars and discover best practices that help your organization plan efficiently. (https://www.virtosoftware.com/events/microsoft-teams-calendar-guide/) - Teams Channel Calendar: Follow step-by-step guidance on creating, managing, and customizing channel-based scheduling. (https://www.virtosoftware.com/events/teams-channel-calendar/) ## FAQ — Microsoft Teams Calendar Management Q: Do people who only view the calendar need a license? A: Yes. Everyone who opens Virto Calendar App uses a license, whether they add events or only look at them. Count the people who will actually open the calendar, not everyone in your Microsoft 365 tenant. A license is assigned automatically the first time a person opens the app, and the 30-day cleaning option frees the licenses of people who have not opened it for 30 days. If most of your people only need to view a calendar, look at Virto Shared Calendar, where viewers never need a license. See: How Virto Calendar App licensing works — https://docs.virtosoftware.com/docs/calendar-overlay-pro/licensing-and-security/licensing/ Q: How many licenses do I need? A: One for each person who opens the calendar. One license covers the same person in SharePoint Online, in Microsoft Teams and in the browser, so nobody is counted twice. A license manager who only manages licenses and does not use the calendar needs none. The published plan covers up to 100 users; for more, we quote a plan for your number. See: Count your licenses — https://www.virtosoftware.com/#licence-calculator Q: Who can see and edit events in Virto Calendar App? A: Each person sees and edits only what their own Microsoft 365 rights allow in each source: a SharePoint list, an Outlook calendar, a group calendar. Two colleagues who open the same calendar can therefore see different events. Microsoft 365 group calendars show only to members of the group. See: Who sees what in Virto Calendar App — https://www.virtosoftware.com/microsoft-365-guides/virto-calendar-permissions/ Q: How do I add a shared calendar to a Microsoft Teams channel? A: Add Virto Calendar App as a tab in any Teams channel or chat. Everyone opens the same consolidated calendar without leaving Teams, and each person sees the events their own Microsoft 365 permissions allow — no per-user setup required. Q: Can Microsoft Teams overlay multiple calendars natively? A: The built-in Teams channel calendar shows only that channel's meetings. Virto Calendar App overlays unlimited calendars — Outlook and Exchange, Microsoft resource calendars, SharePoint, Planner, and iCal feeds — in one color-coded Teams tab. Q: What calendar sources can I overlay in Teams? A: Outlook and Exchange Online calendars (personal and shared), Microsoft resource calendars (rooms and equipment), SharePoint calendars and lists, Microsoft Planner plans, and any iCal feed. Q: Is this the same product as Virto Calendar for SharePoint and Microsoft 365? A: Yes — Virto Calendar is one product with two surfaces. This page covers the Microsoft Teams app; the Microsoft 365 / SharePoint Online version is available separately. See: Virto Calendar App for Microsoft 365 — https://www.virtosoftware.com/microsoft-365/virto-calendar-overlay-app/ Q: Where is my calendar data stored? A: Your calendar data stays where it already lives, in your own Microsoft 365 tenant (SharePoint lists, Exchange calendars, Planner) or in the internet calendars you connect. The app's backend runs on Microsoft Azure in the US and processes events in memory only; VirtoSoftware never stores your content. For Enterprise-tier customers, custom deployment into your own infrastructure or Microsoft 365 tenant is available. See: Trust & Security Center — https://docs.virtosoftware.com/docs/virtosoftware-trust-security-center/security-overview/ Q: Is Virto Calendar App verified by Microsoft? A: Virto Calendar App is published in the Microsoft commercial marketplace and has Microsoft Publisher Attestation — a self-assessment of its security, compliance, and data handling that Microsoft publishes on Microsoft Learn. Microsoft does not audit it, and the app does not hold Microsoft 365 Certification. Our security documents and the answers to your review are on the Security & Compliance page. See: Security & Compliance — https://www.virtosoftware.com/security-compliance/ --- URL: https://www.virtosoftware.com/virto-calendar-comparison/ Virto Calendar App vs. Virto Shared Calendar: which one fits your team One view of the calendars you already have, or one calendar your team fills in together. Which one should you choose? Both open where your team already works. The difference is where the events come from. Virto Calendar App Choose it if Your events already live in Outlook, Exchange, SharePoint lists or Planner, and you want them in one view You need room and equipment calendars, a Gantt view or the whole year at a glance across departments Calendar content has to stay in your Microsoft 365 tenant You are planning for 100 users or more Virto Shared Calendar Choose it if You need one calendar the team fills in together, rather than a view of calendars you already have You share it by link with clients, contractors or vendors who have no Microsoft account You are a small team: people who only view it are free, and the free plan covers 15 entries per user You work in Microsoft Teams or simply in a browser Detailed Feature Comparison Feature | Virto Calendar App | Virto Shared Calendar Platform | SharePoint, Microsoft 365 (Outlook, Teams) | Microsoft Teams (channel tab) and a web app in any browser Calendar sources supported | Exchange Online calendars, room and equipment mailboxes, SharePoint lists, Planner, Public Folders, iCal feeds (Google Calendar too) | Its own events plus read-only iCal feeds Sharing with people outside | People outside your organization sign in as SharePoint site guests | Share by link, view-only or with edit rights; no Microsoft account needed View modes | Day, Week, Work Week, Month, Year, Year Quarter, Flat Year, Multi Source, Gantt (task days and task hours) | Day, Week, Month, Year, Task timeline (days or hours) Permissions | Follows each source: people see what they can already open in Microsoft 365 | Private or organization-wide calendar; owners, members who edit, others who view Notifications | Reminders come from the source (Outlook, SharePoint) or from Virto Alerts & Reminder App, a separate app | No notifications Where your data is stored | Stays in your Microsoft 365 tenant; the app reads it without storing it | On Microsoft Azure, managed by VirtoSoftware Free option | 30-day free trial | Free plan: up to 15 calendar entries per user; people who only view are always free Use cases Real setups for each calendar, one page each With Virto Calendar App 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 … Rooms & Equipment Calendar Combine rooms, offices, vehicles and equipment in one Microsoft 365 calendar, with the maintenance jobs and blackout periods that make them … Executive Annual Calendar Overlay approved strategic milestones, launches, board and QBR dates and annual targets by theme in one live annual calendar for the CEO and … With Virto Shared Calendar Company Holiday Calendar One company holiday calendar for a small team: public holidays from an iCal feed, office closures and time off, shared with employees, … Customer Support Schedule One shared rota for on-call shifts, PTO and night rotations, tagged by tier. Agents check it in Teams or on a phone, and part-timers or … Sprint Calendar Stay in sync and sprint with style: planning, stand-ups, reviews and retros in one shared sprint calendar, color-coded, in a browser or in …