Software Alternatives, Accelerators & Startups
Register | Login

Cal.com VS StackPlanner

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

Zoho CRM
Omnichannel CRM for Businesses of all sizes featured
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.
Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Cal.com logo Cal.com

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

StackPlanner logo StackPlanner

Simplify lease management with StackPlanner's intuitive stacking plans. Visualize occupancy, track lease expirations, and manage your commercial real estate portfolio efficiently. Starting at $79/user.
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • StackPlanner
    Image date //
    2025-11-14
  • StackPlanner
    Image date //
    2025-11-14

StackPlanner is an intuitive, cloud-based real estate management platform designed to help property owners, asset managers, and leasing teams visualize and manage their building portfolios with ease. It offers an interactive stacking plan view that provides a clear overview of tenant occupancy, lease terms, and space utilization across multiple properties.

With StackPlanner, users can centralize lease data, monitor upcoming expirations, and make data-driven decisions to improve asset performance and reduce vacancies. The platform streamlines collaboration between property, asset, and leasing teams, ensuring everyone has real-time access to accurate building and tenant information.

Whether managing a single commercial property or a large portfolio, StackPlanner simplifies complex data into a visual format, helping real estate professionals plan, analyze, and optimize their space more efficiently.

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.

StackPlanner features and specs

No features have been listed yet.

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

+ Add

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

StackPlanner videos

No StackPlanner videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Cal.com and StackPlanner)

Cal.com

StackPlanner

Appointments and Scheduling
100 100%
Appointments and Scheduling
0% 0
Real Estate
0 0%
Real Estate
100% 100
Calendar And Scheduling
100 100%
Calendar And Scheduling
0% 0
Commercial Real Estate
0 0%
Commercial Real Estate
100% 100

User comments

Share your experience with using Cal.com and StackPlanner. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

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
Source: news.ycombinator.com

StackPlanner Reviews

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

Social recommendations and mentions

Based on our record, Cal.com seems to be more popular. 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.

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

StackPlanner mentions (0)

We have not tracked any mentions of StackPlanner yet. Tracking of StackPlanner recommendations started around Nov 2025.

What are some alternatives?

When comparing Cal.com and StackPlanner, 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.

AscendixRE CRM - Commercial real estate CRM with integrated AI functionality for deal & contact management, property listings, stacking plans, commission splits, document generation, geo search of data, and more!

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

LeaseHub - Property Management Software

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

LeaseLinks - Real Estate Portfolio Management

Loading...