Best Calendar Software - Page 11

How Many Calendar Software Products Does G2 Track?

Total Products under this Category: 157

Category Stats (Sep 2026)

  • Average Rating: 4.46/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: GlossGenius (+4.34%) - Among all products in this category, GlossGenius recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Calendar Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 150,100+ Authentic Reviews
  • 157+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Calendar Software

G2 Grid® for Calendar Software plotting products by satisfaction and market presence

Highlighted products: Google Workspace, Microsoft Outlook, Zoom Workplace, Microsoft 365, Calendly, ClickUp, Zoho Mail, and Reclaim.ai.

Underlying data: [Grid® JSON](https://www.g2.com/categories/calendar-software/grids.json?focus%5B%5D=google-workspace&focus%5B%5D=microsoft-outlook&focus%5B%5D=zoom-workplace&focus%5B%5D=microsoft365&focus%5B%5D=calendly&focus%5B%5D=clickup&focus%5B%5D=zoho-mail&focus%5B%5D=reclaim-ai)

TimeTree

Who Is the Company Behind TimeTree?

  • Seller: Timetree
  • Year Founded: 2014
  • HQ Location: 新宿区, JP
  • LinkedIn® Page: www.linkedin.com
    58 employees on LinkedIn®

Virto Shared Calendar

Virto Shared Calendar is an intuitive, cloud-based calendar solution designed to help small and medium-sized businesses, project teams, and client-facing professionals streamline scheduling, collaboration, and resource management. Built to integrate seamlessly with Microsoft 365, Teams, and Outlook, Virto Shared Calendar empowers organizations to manage events, appointments, and team availability—all in one secure, user-friendly platform. Key Features and Benefits: - Easy Sharing & Collaboration: Share calendars with colleagues, clients, or external partners—even if they don’t have a Microsoft account. Flexible permission settings allow you to control who can view or edit each calendar. - Real-Time Sync: Access and update your calendar from any device. All changes are instantly reflected across browsers, Teams tabs, and Outlook, ensuring everyone stays on the same page. - No Admin Required: Virto Shared Calendar is designed for instant setup—no IT expertise or admin permissions needed. Start scheduling and sharing in minutes. - Versatile Use Cases: Whether you need a payment calendar, payroll calendar, sprint planner, customer support schedule, or availability tracker, Virto Shared Calendar adapts to your unique business needs. - Privacy & Security: Built with enterprise-grade security, your data remains protected and compliant with industry standards. Virto Shared Calendar is ideal for small business owners, HR managers, project leads, client service teams, and anyone looking for a reliable, shareable calendar solution without the complexity of traditional enterprise tools: - Affordable & Accessible: With a forever free tier and flexible pricing, Virto Shared Calendar fits any budget. - User-Friendly Experience: The clean, intuitive interface means less time learning and more time collaborating. - Seamless Microsoft Integration: Use Virto Shared Calendar directly in Microsoft Teams, Outlook, or any web browser—no complex installations or overlays required. VirtoSoftware is a trusted provider of productivity and collaboration solutions for Microsoft 365 and SharePoint. With a focus on simplicity, security, and real business value, VirtoSoftware helps organizations worldwide work smarter and achieve more. Try Virto Shared Calendar today and experience a smarter way to organize your team’s time.

Who Is the Company Behind Virto Shared Calendar?

  • Seller: VirtoSoftware
  • Year Founded: 2009
  • HQ Location: Los Angeles, US
  • Twitter: @VirtoSoftware
    896 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    14 employees on LinkedIn®

WeekCal

Who Is the Company Behind WeekCal?

WonderCal

OpenScheduler is WonderCal’s MIT-licensed, off-the-shelf scheduling toolkit for people building AI scheduling workflows. It provides ready-to-use MCP, REST, Claude-agent, and webhook components for syncing Google Calendar, Microsoft Outlook, and Apple Calendar. WonderCal’s hosted service adds multi-person availability, group scheduling, required and optional participants, cross-company coordination, fallback availability collection, and completed booking across calendar domains. Together, they let AI assistants coordinate and finish complex meetings without sending participants a booking link or exposing private calendar details.

Who Is the Company Behind WonderCal?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated March 6, 2025