Software Alternatives, Accelerators & Startups

Cal.com VS API Platform

Compare Cal.com VS API Platform and see what are their differences

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.

Cal.com logo Cal.com

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

API Platform logo API Platform

REST and GraphQL framework to build modern API-driven projects
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • API Platform Landing page
    Landing page //
    2023-09-15

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.

API Platform features and specs

  • Rich Feature Set
    API Platform offers a comprehensive set of tools and features for building APIs, including schema generation, documentation, testing, and more, which can accelerate the development process.
  • GraphQL Support
    It provides built-in support for GraphQL, allowing developers to create flexible and efficient queries, which can improve client performance and reduce over-fetching of data.
  • Automatic CRUD Operations
    API Platform simplifies backend development by automatically generating CRUD (Create, Read, Update, Delete) operations from the model schema, reducing boilerplate code.
  • Integration with Symfony
    Built on top of Symfony, API Platform leverages Symfony's robustness, community support, and vast amount of plugins and bundles, which can enhance the APIโ€™s flexibility and extensibility.
  • API-First Design
    It supports designing APIs first with a specification-based approach, encouraging developers to define data models and interfaces before implementation, leading to clearer and more maintainable code.

Possible disadvantages of API Platform

  • Complexity for Simple APIs
    For simple or small-scale APIs, API Platform's extensive features can introduce unnecessary complexity, making it less suitable for straightforward projects where a simpler solution would suffice.
  • Learning Curve
    The comprehensive feature set can lead to a steeper learning curve for newcomers, especially those unfamiliar with Symfony or the API Platformโ€™s methodologies.
  • Symfony Dependency
    Since API Platform is deeply integrated with Symfony, it might not be the ideal choice for projects using different frameworks, as it would require adopting Symfonyโ€™s ecosystem.
  • Limited Community Compared to Larger Frameworks
    While it has a supportive community, API Platform is more niche compared to larger frameworks like Express or Django, which might result in fewer community resources or third-party tutorials.
  • Overhead on Performance
    The abstraction and features provided by API Platform may introduce some overhead, potentially impacting performance compared to more lightweight solutions optimized for specific use cases.

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

API Platform videos

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

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Category Popularity

0-100% (relative to Cal.com and API Platform)
Appointments and Scheduling
Web Frameworks
0 0%
100% 100
Calendar And Scheduling
100 100%
0% 0
Developer Tools
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 API Platform

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

API Platform Reviews

We have no reviews of API Platform yet.
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Social recommendations and mentions

Based on our record, Cal.com should be more popular than API Platform. 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 / 5 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
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API Platform mentions (39)

  • Symfony 7 vs. .NET Core 8 - Controllers
    Another difference is that in .NET Core, we can integrate with OpenAPI out of the box (it is part of the framework), while in Symfony, an API-based application with OpenAPI features is only available using a third-party toolโ€”the API Platform. - Source: dev.to / about 2 years ago
  • Consistent validation with API Platform 3
    API Platform is a great tool for rapid API development, but it has a lot of not-so-well-documented features which can sometimes lead to confusion. Playing around with a new project of mine I've stumbled into one: tests were failing for my validation assertions of endpoints' responses! - Source: dev.to / about 2 years ago
  • Lucky like a 7 โ€” Seven SymfonyCasts Courses to Master Symfony 7
    Technically API Platform is not part of Symfony. Although, they are both French. ๐Ÿ˜‰. - Source: dev.to / over 2 years ago
  • Shot in the dark
    Probably API-platform. The website is down at the moment, but: https://github.com/api-platform/api-platform It's Symfony based (and plays nice in that ecosystem), also allows you to describe entities via Schema org vocab, has a client generator, and comes with docker-compose and helm charts. I've used it extensively to build various headless services. It's really easy to expose annotated Doctrine entities. Source: about 3 years ago
  • API Platform up and running in 5 minutes ๐Ÿš€
    API Platform is a framework for API-first projects, built on top of Symfony components. Let's see how to create a minimal and lightweight starter project in just 5 minutes! - Source: dev.to / about 3 years ago
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What are some alternatives?

When comparing Cal.com and API Platform, 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.

Play Framework - An open source web framework which follows the model-view-controller architecture. It is light-weight, web-friendly, and stateless. It provides minimal overhead for highly-scalable applications.

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

Adonis JS - AdonisJs is a Node.js web framework with breath of fresh air and drizzle of elegant syntax on top of it

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

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple