Top Free Calendar Software - Page 4

How Many Calendar Software Products Does G2 Track?

Total Products under this Category: 153

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
  • 153+ 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)

Booksy Biz

Booksy Biz is the all-in-one online booking software and business management platform built for beauty pros and salon owners who do it all - hair, nails, skin, massage, braids, and everything in between. Whether you’re solo or running a full team, Booksy puts your whole business in one place so you can spend less time managing and more time practicing your craft. With a marketplace of 50M+ clients, Booksy doesn’t just keep your calendar full - it helps more clients find you, book you, and stay loyal. What Booksy Biz does for you - 24/7 Online Booking: Clients book themselves anytime with an online booking system that works around the clock. - More Visibility: Get discovered on Google, the Booksy for Customers app, and Booksy’s Marketplace by people searching for pros like you. - Business HQ: Appointment scheduling software, client management, marketing tools, and payment processing-together in one powerful platform. - Less admin and operational chaos: Streamline and automate your scheduling, marketing, and staff management systems. - Resources and inventory management: Keep your team and business running smoothly. - Time Savings: Automations that save you up to 24 hours every month. - Flexibility: Manage your business from your phone, tablet, or desktop. Why pros love it - Customizable calendars for you and your staff - Secure, integrated checkout and payment processing - Automated reminders to cut no-shows - Reporting and insights that help you grow - Built-in marketing tools to boost bookings and keep clients coming back - Transparent pricing that includes every feature - 24/7 live support Booksy Biz is salon-grade tech with small-business swagger - made to help you work smarter, grow faster, and get booked by the people who matter. Learn more: biz.booksy.com/en-us

Average Rating: 4.8/5.0

Total Reviews: 6

How Do G2 Users Rate Booksy Biz?

  • Has the product been a good partner in doing business?: 7.5/10 (Category avg: 9.1/10)

Who Is the Company Behind Booksy Biz?

  • Seller: Booksy
  • Year Founded: 2014
  • HQ Location: Chicago, IL
  • LinkedIn® Page: www.linkedin.com
    1,234 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Booksy Biz?

AI-generated summary from verified user reviews

Pros
  • Users value the 24/7 online booking feature of Booksy Biz, enhancing business growth and client satisfaction.
  • Users value the 24/7 online booking feature of Booksy Biz, enhancing business growth and client satisfaction.
  • Users appreciate the user-friendly interface of Booksy Biz, making it easy to find and book services efficiently.
  • Users appreciate the 24/7 online appointment booking, enhancing business growth and improving client satisfaction.
  • Users find Booksy Biz to be exceptionally user-friendly, making service searches and appointment booking a breeze.

What Are Recent G2 Reviews of Booksy Biz?

What Are G2 Users Discussing About Booksy Biz?

Calfrenzy

Calfrenzy is an online appointment scheduling platform for professionals and teams that manage client bookings, payments, reminders, recurring sessions, and multi-session appointments from one platform. Users can create professional booking pages, share scheduling links, sync calendars, accept online payments, and let clients book appointments based on real-time availability. Calfrenzy helps reduce manual scheduling, prevent double bookings, and make it easier for clients to book the sessions they need. Calfrenzy is built for service-based businesses that offer appointments, lessons, consultations, classes, packages, or ongoing programs. Tutors, coaches, consultants, personal trainers, photographers, wellness professionals, music teachers, studios, small academies, and growing teams can use Calfrenzy to manage one-on-one appointments, group bookings, recurring sessions, and multi-session scheduling. With booking pages, calendar sync, automated reminders, payment collection, recurring bookings, and multi-session appointment scheduling, Calfrenzy helps businesses save time and create a smoother booking experience for their clients.

Average Rating: 5.0/5.0

Total Reviews: 2

How Do G2 Users Rate Calfrenzy?

  • Sync Multiple Calendars: 10.0/10 (Category avg: 8.7/10)
  • Software Integrations: 10.0/10 (Category avg: 8.2/10)
  • Customized Calendar Notifications: 10.0/10 (Category avg: 8.8/10)

Who Is the Company Behind Calfrenzy?

  • Seller: SoftLux
  • Year Founded: 2023
  • HQ Location: N/A
  • Twitter: @calfrenzy53224
    1 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Calfrenzy?

AI-generated summary from verified user reviews

Pros
  • Users love the ease of use of Calfrenzy, appreciating its intuitive interface and seamless scheduling integration.
  • Users find the automatic recording feature of Calfrenzy seamless and convenient for calendar integration.
  • Users find Calfrenzy's easy implementation enhances their experience with seamless calendar integration and user-friendly setup.
  • Users value the easy integrations of Calfrenzy, enhancing their productivity with seamless calendar compatibility.
  • Users love the intuitive interface of Calfrenzy, which simplifies scheduling across teams and time zones seamlessly.
Cons
  • Users note the limited customization options in Calfrenzy's beta version, which may hinder power users' experience.
  • Users note the missing features in Calfrenzy, limiting customization options for those seeking advanced functionality.

What Are Recent G2 Reviews of Calfrenzy?

Autolidays

Autolidays automatically syncs public holidays to Google Calendar for distributed teams across 100+ countries. Eliminate manual holiday tracking, prevent scheduling conflicts, and show your international team that their culture matters. Holidays appear as out-of-office blocks, integrating seamlessly with Calendly and other scheduling tools. Setup takes minutes, updates happen automatically - including lunar calendar holidays that shift dates yearly.

Who Is the Company Behind Autolidays?

Calenderify

All-in-One Scheduling Platform for Booking, Polls, and Paid Sessions Scheduling isn’t just about picking a meeting time; It’s about turning availability into a smooth workflow that’s easy to share, embed, and automate. Calenderify brings booking, group coordination, publishing, and monetization into one connected platform. Whether you’re a coach offering 1:1 sessions, an agency coordinating client calls, or a team planning events across stakeholders, Calenderify helps you reduce back-and-forth and prevent double bookings with calendar sync and availability rules. With Calenderify, you can: Create booking types with custom details, questions, limits, reminders, and optional paid bookings. Embed booking pages on your website (WordPress, Webflow, or custom sites) to convert visitors into bookings where they already are. Run polls where guests vote on times, and you can quickly confirm the winner. Publish services or events in a public directory as free or paid listings with shareable links. Connect calendars, video conferencing, and payments to automate confirmations, meeting links, and payment processing for paid sessions. Manage team scheduling with collective scheduling, round robin assignment, and routing forms. Calenderify is designed for people who need more than basic scheduling—booking, voting, publishing, automation, and earnings tracking in one place. Key Features Booking pages with embeddable landing pages (one link per service) Date polls with group voting and fast time confirmation Availability management (weekly hours, specific dates, blocked dates, buffers) Public directory for publishing services/events (free or paid listings) Calendar integrations (Google Calendar, Microsoft 365) Video integrations (Google Meet, Zoom, Microsoft Teams) Payments for paid sessions (Stripe connection or PayPal email) Team scheduling: collective scheduling, round robin, routing forms Earnings tracking dashboard for paid bookings

Who Is the Company Behind Calenderify?

CorpSync

CorpSync is a secure, cloud-based platform designed to streamline communication and enhance productivity across your organization. Built for modern legal and professional service firms, it ensures seamless integration with Microsoft 365 and mobile environments. Key Modules: 1. Contact Sync – Automatically keep internal and external contacts up to date across Outlook, Teams, and mobile devices, eliminating manual updates. 2. Outlook Global Signature Management – Standardize professional email signatures firm-wide, including on smartphones, to maintain brand consistency. 3. Sync Shared Calendars to Mobile Devices – Ensure team calendars are always accessible on iOS and Android for better coordination on the go. 4. Mass Notification – Instantly send critical alerts or updates to your entire workforce via SMS for emergencies or urgent announcements. Key Features: 1. Merge Data Sources: Seamlessly combine contact information from various sources into a unified database. 2. Sync GAL to Smart Phones: Keep your Global Address List synchronized with smartphones for easy access to up-to-date contact information. 3. Contact Groups, Distribution Lists: Efficiently manage contact groups and distribution lists for streamlined communication. 4. Supports On-Prem Exchange, Microsoft 365 and Hybrid Mode: integrates smoothly to automatically import contacts from Azure AD or other contact sources and updates contacts with a nightly sync. 5. Mask Sensitive Contact Information: Boost data security with customizable privacy rules that allow administrators to mask sensitive information, ensuring only selected contact details are shared before syncing. 6. Flexible Configuration – Subscribers: Allows administrators to customize whether to push contacts to Outlook, mobile apps, or both, tailored for efficient communication. 7. iOS & Android Apps: Access your synchronized contacts on the go with user-friendly apps available for both iOS and Android devices. 8. Enforces unified Outlook email signatures across the firm. 9. Enables two-way mass SMS communication for emergency situations, ensuring quick and effective communication. 10. Caller ID Provider: Benefit from a Caller ID provider that enhances your contact management and identification process.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind CorpSync?

  • Seller: PaayaTech
  • Year Founded: 2007
  • HQ Location: Mississauga, CA
  • LinkedIn® Page: www.linkedin.com
    12 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of CorpSync?

MechanicX

MechanicX is a cloud-based garage amanagement platform built for UK independent garages and mobile mechanics. It combines bookings and calendars with capacity and estimated-hours workload bars, digital job cards and technician worksheets, plus estimates, invoicing and payments via Stripe and Dojo. With a self-service customer portal for invoices and online payment. DVLA VRM lookup, MOT history and an online MOT booking widget for a garage's own website. With accounting sync to Xero. CE Cert.

Who Is the Company Behind MechanicX?

Nelio Content

Nelio Content is the editorial calendar and content assistant for WordPress. It’s designed to help you to schedule, create, and promote your blog’s content efficiently. Its ultimate goal is to assist you during all the tasks involved in content creation and promotion in social media. Nelio Content doesn’t give you additional work—it’s the perfect companion for running a successful blog and writing outstanding posts saving tons of time. Nelio Content helps more than 6,000 sites stay organized in more than 100 countries around the world.

Who Is the Company Behind Nelio Content?

  • Seller: Nelio
  • Year Founded: 2013
  • HQ Location: Barcelona,
  • Twitter: @NelioSoft
    2,458 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    4 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®