Software Alternatives, Accelerators & Startups

BigBlueButton VS Cal.com

Compare BigBlueButton VS Cal.com and see what are their differences

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BigBlueButton logo BigBlueButton

Engage Your Online Students. BigBlueButton is a web conferencing system designed for online learning.

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
  • BigBlueButton Landing page
    Landing page //
    2023-05-12
  • Cal.com Landing page
    Landing page //
    2023-10-08

BigBlueButton features and specs

  • Open Source
    BigBlueButton is an open-source web conferencing system, which means it can be freely used, studied, and modified by anyone. This allows extensive customization and potential cost savings.
  • Educational Features
    The platform is tailored for online learning with features such as real-time sharing of audio, video, slides (with whiteboard controls), and screens. It also supports breakout rooms, public and private chat, and polling, which are essential for a dynamic learning environment.
  • Integrations
    BigBlueButton integrates well with major learning management systems (LMS) like Moodle, Canvas, and Sakai, which helps educational institutes seamlessly incorporate it into their existing systems.
  • Scalability
    The platform is built to scale, making it suitable for small classes as well as large lectures. Institutions can deploy BigBlueButton on their own servers to meet their scale and performance requirements.
  • Security and Privacy
    As users can host BigBlueButton on their own servers, they have greater control over data privacy and security, ensuring compliance with institutional and legal standards.

Possible disadvantages of BigBlueButton

  • Technical Complexity
    Setting up and maintaining BigBlueButton requires technical expertise. This might be a challenge for institutions or individuals without sufficient IT resources.
  • Resource Intensive
    Running a BigBlueButton server can be resource-intensive. It requires a dependable server infrastructure and can consume significant bandwidth, which might not be feasible for all users.
  • User Interface
    While functional, the user interface of BigBlueButton may not be as polished or intuitive as some commercial alternatives, potentially leading to a steeper learning curve for new users.
  • Mobile Experience
    The mobile experience is not as robust as desktop usage. Although it is improving, some users might find limitations or feel that it lags behind competitors that have dedicated mobile apps.
  • Limited Market Penetration
    BigBlueButton is less known compared to other commercial solutions like Zoom or Microsoft Teams. This lower market penetration might lead to hesitation or resistance from users unfamiliar with the platform.

Cal.com features and specs

  • Customizable
    Cal.com allows extensive customization to fit various branding and scheduling needs, which makes it adaptable for different types of users including businesses and individuals.
  • Open-source
    Being an open-source platform, Cal.com provides the flexibility for developers to modify and extend the software as per their specific needs, fostering a collaborative development environment.
  • Integrations
    Cal.com offers a wide range of integrations with other software tools like Google Calendar, Microsoft Outlook, and Zoom, enhancing its functionality and making it easier to fit into existing workflows.
  • User-friendly Interface
    Cal.com has an intuitive and clean interface that makes it easy for users of all technical skill levels to set up and manage their scheduling.
  • Privacy-focused
    Cal.com emphasizes data privacy, ensuring user information is handled securely, which is crucial for users who need to comply with regulations like GDPR.

Possible disadvantages of Cal.com

  • Learning Curve
    Although it is highly customizable, the plethora of options and features may result in a steeper learning curve for new users who are not familiar with such scheduling tools.
  • Limited Free Version
    The free version of Cal.com comes with limitations that may not be sufficient for growing businesses or advanced users who require more comprehensive features.
  • Dependency on Integrations
    Cal.com's effectiveness heavily depends on its integrations. Without these integrations, some users might find the tool less useful or incomplete, especially if their primary tools are not supported.
  • Support
    While open-source has many benefits, it may also mean that immediate, personalized support could be limited compared to fully commercial solutions. This might pose a challenge for users needing quick resolutions.
  • Performance
    As an open-source platform, the performance might vary depending on how it is hosted and managed. Suboptimal configurations could lead to slower performance or downtimes.

Analysis of BigBlueButton

Overall verdict

  • BigBlueButton is generally regarded as a strong option for educational institutions seeking a reliable and cost-effective online conferencing tool. Its focus on educational features, combined with the flexibility and adaptability afforded by its open-source nature, makes it a solid competitor against proprietary solutions.

Why this product is good

  • BigBlueButton is an open-source web conferencing system designed for online learning. It's tailored to provide a seamless virtual classroom experience with features like real-time sharing of audio, video, chat, presentation, and screen. Additionally, it includes tools like polling, multi-user whiteboard, and breakout rooms, which are essential for interactive learning sessions. The software has consistent updates and a supportive community enhancing its functionality and addressing security and usability concerns.

Recommended for

    BigBlueButton is particularly recommended for schools, universities, and educational organizations looking for a tailored e-learning platform. It's also a worthwhile consideration for any institution or organization that prefers open-source solutions and needs comprehensive hosting control and customization options.

Analysis of Cal.com

Overall verdict

  • Cal.com is generally considered a good option for scheduling and calendar management.

Why this product is good

  • Cal.com is praised for its open-source nature, allowing for greater customization and integration flexibility. It offers a user-friendly interface and supports various calendar integrations, making it a versatile tool for individuals and businesses alike.

Recommended for

  • Freelancers who need a simple yet effective scheduling tool.
  • Small businesses looking for a customizable scheduling solution.
  • Developers who appreciate open-source software and need a tool they can modify.
  • Businesses seeking a platform that can integrate with existing tools and workflows.

BigBlueButton videos

BigBlueButton Overview: Viewer

More videos:

  • Review - Using Conferences / BigBlueButton in Canvas Instructure

Cal.com videos

What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages

More videos:

  • Review - Cal.com Version 1.0 Launch Event

Category Popularity

0-100% (relative to BigBlueButton and Cal.com)
Communication
100 100%
0% 0
Appointments and Scheduling
Group Chat & Notifications
Calendar And Scheduling
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare BigBlueButton and Cal.com

BigBlueButton Reviews

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Cal.com Reviews

Acuity Scheduling alternatives for businesses outgrowing it
The honest read: if you're leaving Acuity because your business outgrew simple scheduling โ€” you need deposits, add-ons, multiple staff and locations, and ideally a booking site you own โ€” Opencals is built for exactly that transition, and pay-as-you-go means it costs nothing until you're earning. If you're leaving for a narrower reason, match it precisely: SimplyBook.me for...
Source: opencals.com
I've poked around a while ago at some Calendly alternatives (specifically was lo... | Hacker News
I tried using https://cal.com for a bit but ended up just switching over to https://zcal.co and it has been great so far. All these other scheduling tools end up trying to do too much and always seem to end up a bit clunky and charge absurd amounts for it

Social recommendations and mentions

Based on our record, Cal.com should be more popular than BigBlueButton. It has been mentiond 60 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

BigBlueButton mentions (18)

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Cal.com mentions (60)

  • "You Wouldnโ€™t Steal a DIV": How I Built My Portfolio
    Then for the component library, I was really into coss ui. I stumbled upon it randomly one day and loved it so much. My Nathan's AI project already had a UI heavily inspired by cal.com: send button, message suggestions... So when I saw they had a shadcn/ui library with that kind of style, it was perfect for what I needed. - Source: dev.to / 4 months ago
  • AI Almost Sold Me a Subscription I Didn't Need
    I keep coming back to what would have happened if I didn't have a strong technical understanding of how calendar technology works โ€” the difference between local and cloud calendars, what an ICS feed is, why enterprise auth blocks third-party integrations. If this was many years ago before I gained all this experience, I would have stopped at the first confident answer from my search tool, installed one of those... - Source: dev.to / 4 months ago
  • Introducing Quackback: Open-Source Feedback Platform with a Built-in MCP Server
    Plausible brought open source to web analytics. Cal.com did it for scheduling. Formbricks did it for surveys. PostHog did it for product analytics. Quackback does it for feedback collection. - Source: dev.to / 5 months ago
  • ๐Ÿค Learn Front-End by Doing: Contribute to Cal.com's Open Source...๐Ÿš€
    In this tutorial, we'll be focusing on Cal.com:. - Source: dev.to / 11 months ago
  • 5 Side Project Ideas for Developers to Monetize as Micro-SaaS in 2025
    Take Cal.com (https://cal.com/), formerly known as Calendso. It started as an open source alternative to Calendly which offers a free, self-hostable version for users. - Source: dev.to / over 1 year ago
View more

What are some alternatives?

When comparing BigBlueButton and Cal.com, you can also consider the following products

Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where youโ€™re located, all in one platform.

Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.

WebEx - Cisco WebEx Web Conferencing, Online Meetings, Desktop Sharing, Video Conferencing

TidyCal - Optimize your schedule with custom booking pages and calendar integrations

GoToMeeting - GoToMeeting is a web conferencing service offering a range of services which are available on Mac, PC, iOS and Android devices.

Acuity Scheduling - Automate your client bookings, cancellations, reminders & payments using the worlds friendliest online scheduling software.