Software Alternatives, Accelerators & Startups

Cal.com VS Stacky

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

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.

Stacky logo Stacky

Simple app enhancing windows task bar functionality with stacks of shortcuts.
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • Stacky Landing page
    Landing page //
    2023-10-18

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.

Stacky features and specs

  • Open Source
    Stacky is open source, allowing developers to contribute to and enhance the project according to their needs.
  • Community Support
    As a GitHub-hosted project, it benefits from community collaboration, where users can share improvements, report issues, and request new features.
  • Free to Use
    Being an open-source tool, Stacky can be used for free, which is advantageous for developers and companies looking to cut costs.
  • Customizable
    Developers have the ability to fork the project and customize it to better fit their specific use cases and requirements.

Possible disadvantages of Stacky

  • Lack of Documentation
    Stacky may not have comprehensive documentation, making it challenging for new users to understand and implement the tool effectively.
  • Potential for Bugs
    As with many open-source projects, there may be less rigorous testing, leading to the potential presence of unresolved bugs or issues.
  • Limited Features
    Depending on the project's current state, it may have fewer features compared to more established alternatives, limiting its utility for some use cases.
  • Maintenance Uncertainty
    The project's future updates and maintenance depend on the community or the project owner's interest, which could be inconsistent.

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.

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

Stacky videos

Vertical Gardening with Mr. Stacky set up, seed planting, and review.

More videos:

  • Review - Vertical Gardening with Mr. Stacky
  • Review - NOOB vs PRO vs HACKER in Stacky Dash

Category Popularity

0-100% (relative to Cal.com and Stacky)
Appointments and Scheduling
Productivity
91 91%
9% 9
Calendar And Scheduling
100 100%
0% 0
Note Taking
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 Cal.com and Stacky

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

Stacky Reviews

We have no reviews of Stacky yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Cal.com seems to be a lot more popular than Stacky. While we know about 60 links to Cal.com, we've tracked only 1 mention of Stacky. 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.

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 / 5 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 / 12 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

Stacky mentions (1)

  • My multi-monitor desktop setup (not pretty but useful)
    Programs (mostly free/sharewares): Google desktop apps: Google Chrome or MS Edge or whatever you use as a browser. And if you're lazy: https://chromeless.app/ to create the apps. Microsoft PowerToys: https://learn.microsoft.com/en-us/windows/powertoys/ Total Commander: https://www.ghisler.com/ ContaCam: https://www.contaware.com/contacam.html Open Hardware Monitor: https://openhardwaremonitor.org/ Stickies:... Source: about 3 years ago

What are some alternatives?

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

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.

RocketDock - RocketDock is a Mac OS X dock clone.

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

MaxLauncher - A simple tabbed application launcher.

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

Winstep Nexus - The Winstep Nexus Dock is a FREE* professional dock for Windows. With Nexus, your most frequently used applications are only a mouse click away - and Nexus turns working with your computer into a fun and exciting experience.