Software Alternatives, Accelerators & Startups

Cal.com VS Anvil PDF Filling API

Compare Cal.com VS Anvil PDF Filling API and see what are their differences

Cal.com logo Cal.com

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

Anvil PDF Filling API logo Anvil PDF Filling API

The easiest way to programmatically populate any PDF
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • Anvil PDF Filling API 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.

Anvil PDF Filling API features and specs

  • Ease of Use
    The Anvil PDF Filling API provides a simple and intuitive interface for filling out PDF forms, which minimizes the learning curve for developers.
  • Automated Workflow
    By automating PDF form filling, the API can save significant time and reduce human error, enhancing productivity.
  • Scalability
    Anvil's infrastructure can handle large volumes of PDF inputs, making it suitable for businesses that need to process many documents.
  • Integration
    The API can be integrated with other software systems and workflows, adding flexibility for businesses to incorporate PDF filling into existing processes.
  • Security
    Anvil offers secure data handling including encryption and compliance with industry standards, ensuring that sensitive information is protected during the document processing.
  • Customizability
    Provides various options for customizing the output PDF, enabling users to adapt the API to their specific needs.

Possible disadvantages of Anvil PDF Filling API

  • Pricing
    The pricing for Anvil's PDF Filling API can be a concern for small businesses or individual users, as it may be more expensive compared to other solutions.
  • Internet Dependency
    Since it's an API service, a stable internet connection is required, which might be a limitation in environments with unreliable connectivity.
  • External Dependency
    Relying on an external service introduces a potential point of failure; if Anvil's service experiences downtime, it could impact your document processing capabilities.
  • Feature Limitations
    While it offers robust features, some specialized or advanced PDF manipulation tasks might not be supported, requiring additional tools for complete functionality.
  • Learning Curve for Advanced Features
    Although basic operations are straightforward, leveraging advanced features may require more in-depth understanding and can be challenging for new users.
  • Data Privacy Concerns
    Sensitive or confidential information being processed through a third-party service might raise privacy concerns for some users, despite the security measures in place.

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

Anvil PDF Filling API videos

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Category Popularity

0-100% (relative to Cal.com and Anvil PDF Filling API)
Productivity
86 86%
14% 14
Appointments and Scheduling
Document Automation
0 0%
100% 100
Appointment Scheduling
100 100%
0% 0

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 Anvil PDF Filling API

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

Anvil PDF Filling API Reviews

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Social recommendations and mentions

Based on our record, Cal.com seems to be more popular. It has been mentiond 56 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 (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 / 2 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 / 6 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

Anvil PDF Filling API mentions (0)

We have not tracked any mentions of Anvil PDF Filling API yet. Tracking of Anvil PDF Filling API recommendations started around Mar 2021.

What are some alternatives?

When comparing Cal.com and Anvil PDF Filling API, 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.

KDAN Mobile PDF Reader - PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.

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

PandaDoc - Boost your revenue with PandaDoc. A document automation tool that delivers higher close rates and shorter sales cycles. We've helped over 30,000+ companies.

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

DocuSign - Try DocuSign's interactive signing demo now! Send yourself an electronic document to digitally sign using our e-signature service.