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Cal.com VS Vercel

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

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Cal.com logo Cal.com

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

Vercel logo Vercel

Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • Vercel Landing page
    Landing page //
    2023-08-05

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.

Vercel features and specs

  • Easy Deployment
    Vercel offers a straightforward and user-friendly process for deploying static sites and serverless functions. It integrates seamlessly with platforms like GitHub, GitLab, and Bitbucket, allowing developers to deploy directly from their repositories.
  • Fast Performance
    Vercel optimizes delivery through its global CDN, which ensures fast load times for users all around the world. It provides edge caching and real-time purging that contribute to high-performance web applications.
  • Serverless Functions
    Vercel supports serverless functions, enabling developers to build and deploy backend functionality without needing to manage server infrastructure. This can save time and resources, particularly for smaller projects.
  • Integration with Next.js
    Vercel is the creator of Next.js, a popular React framework, and offers seamless integration with it, providing advanced features like static site generation, server-side rendering, and API routes.
  • Scalability
    Vercel can handle increased traffic automatically, scaling web applications to accommodate a growing number of users without additional configuration.
  • Preview Deployments
    Every pull request can generate a unique preview deployment, allowing teams to preview changes in a live environment before merging. This enhances collaboration and speeds up the development process.

Possible disadvantages of Vercel

  • Cost
    While Vercel offers a free tier, the pricing can become expensive for larger projects or enterprises, particularly if they require more bandwidth, build minutes, or advanced features.
  • Serverless Limitations
    Serverless functions on Vercel have limits on execution time and computational power. This can be a constraint for compute-heavy tasks or long-running processes.
  • Vendor Lock-in
    Deploying heavily integrated projects with Vercel's proprietary features may make it difficult to migrate to another platform without significant rework.
  • Limited Backend Customization
    While Vercel supports serverless functions, it does not offer the same level of backend customization and control as traditional server hosting environments.
  • Learning Curve for Beginners
    Although easy deployment is a pro, beginners might find it complex to understand concepts like serverless architecture, environment variables, and project structure in the beginning.
  • Limited Language Support
    Vercel primarily supports JavaScript/TypeScript for serverless functions, potentially limiting the use for developers who prefer other programming languages for backend development.

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

Vercel videos

+ Add

Gorillaz - The Now Now ALBUM REVIEW

More videos:

  • Review - Zeit Now - What is it?
  • Review - Deploy Node.js Application to Zeit Now - FreeCodeCamp - Timestamp Microservice 04
  • Review - Now 100 Hits Forgotten 70's - The NOW Review
  • Review - AT&T TV Now 2020 Review - Is it GOOD now??
  • Review - Serverless Fullstack made easy with Next.js, Prisma 2, and Zeit Now #3: Set up Zeit Now

Category Popularity

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

Cal.com

Vercel

Productivity
100 100%
Productivity
0% 0
Developer Tools
0 0%
Developer Tools
100% 100
Appointments and Scheduling
100 100%
Appointments and Scheduling
0% 0
Cloud Computing
0 0%
Cloud Computing
100% 100

User comments

Share your experience with using Cal.com and Vercel. For example, how are they different and which one is better?
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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 Vercel

Cal.com Reviews

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

Vercel Reviews

Top 10 Vercel v0 Open Source Alternatives | Medium
First things first, let’s talk about Vercel v0. You might be wondering, “What exactly is Vercel v0, and why should I care?” Well, my friend, Vercel v0 is a game-changing AI-powered development platform that’s been turning heads in the tech world. It’s designed to revolutionize the way we build and deploy web applications, making the process faster, smoother, and more...
Source: medium.com
5 Best Vercel Alternatives for Next.js & App Router
Vercel has become the go-to platform for hosting modern web applications built with frameworks like Next.js. However, as your application scales, Vercel's pricing model and lack of flexibility can become limiting.
Source: il.ly
Best Serverless Backend Tools of 2023: Pros & Cons, Features & Code Examples
Vercel is a platform for frontend developers for deploying code to an optimized production environment. Even though it doesn’t offer stateful features you’d expect from a BaaS like authentication or databases, it is trivial to copy/paste code from a third-party service like Auth0 for authentication and MongoAtlas for API development.
Source: www.rowy.io
Exploring alternatives to Vercel: A guide for web developers
In recent years, Vercel has emerged as a leading platform for deploying modern web applications, especially those built with frameworks like Next.js. Its seamless integration with Git, automatic deployments, and serverless functions have made it a go-to choice for many developers. However, Vercel can be quite expensive, especially for projects that scale, making it important...
Source: fleek.xyz
5 Free Heroku Alternatives with Free Plan for Developers
Vercel is last in my list and it is more like leys you host JavaScript based web apps and static websites. Since JS apps are in so much demand these days; you will find this platform easier to deploy your apps directly from GitHub/GitLab. It can even act as CI/CD pipeline for your projects. If you created a front end of an app then you can use it for deploying it. It lets...
Source: www.ilovefreesoftware.com

Social recommendations and mentions

Based on our record, Vercel seems to be a lot more popular than Cal.com. While we know about 600 links to Vercel, we've tracked only 56 mentions of Cal.com. 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 (56)

  • 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 / 3 months ago
  • Using Clerk SSO to access Google Calendar and other service data
    BookMate is an open-source, publicly accessible, lightweight clone of popular booking services like cal.com or Calendly. - Source: dev.to / 5 months ago
  • My Journey into Open Source: First Contributions and Lessons Learned
    Then, I came across Cal.com, a fantastic open-source project for scheduling meetings and managing tasks (super useful for productivity!). I knew the basics of Git but wasn’t quite there with forking, merging branches, and all the intricate Git processes. After some YouTube tutorials, I started to get the hang of things. 😅. - Source: dev.to / 7 months ago
  • Start your own (side) business with open-source in mind
    Cal.com is an open-source event-juggling scheduler for everyone, and is free for individuals. - Source: dev.to / about 1 year ago
  • Fellow HSP entrepreneurs, how do you manage your energy and stress?
    I force clients who want to talk to me to book a call. I use cal.com (free) and my Google Calendar (which its linked to) only allows calls on specific days/times. I have a few "Call Blocks" where they can book. That let's me do calls in a small section of my week, with ample downtime to recover the rest of the week. I'm still learning how many calls a day I can handle. Currently anything more than 2 is too much. Source: over 1 year ago
View more

Vercel mentions (600)

  • Deploying a MERN full-stack web application on vercel.com (with Express and Vite as a monorepo)
    Create an account at Vercel with GitHub and authorize Vercel to see your private repo(s). - Source: dev.to / 5 days ago
  • Build a Personal Portfolio Website (2-Minute Tutorial)
    Upload your folder to Netlify, GitHub Pages, or Vercel — and boom, your portfolio is online! - Source: dev.to / 9 days ago
  • How to Build a simple REST API with Node, Express and MongoDB
    For deployment, you can host your server on platforms like Heroku and Vercel. Both platforms offer free tiers, making it easy to deploy your REST API. - Source: dev.to / 16 days ago
  • ArNext - Next.js framework that supports Arweave and Vercel simultaneously
    ArNext is a NextJS-based framework that lets you deploy the same codebase both on Vercel and Arweave. - Source: dev.to / 14 days ago
  • Why devs are quitting aws and what they’re choosing instead
    Platforms like Railway, Render, Fly.io, Vercel, Supabase, and Cloudflare are leading the charge with a shared philosophy:. - Source: dev.to / 15 days ago
View more

What are some alternatives?

When comparing Cal.com and Vercel, 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.

Next.js - A small framework for server-rendered universal JavaScript apps

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

Netlify - Build, deploy and host your static site or app with a drag and drop interface and automatic delpoys from GitHub or Bitbucket

SavvyCal - A scheduling tool both the sender and the recipient will love.

GitHub Pages - A free, static web host for open-source projects on GitHub

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