Software Alternatives, Accelerators & Startups

Cal.com VS Assistant.to

Compare Cal.com VS Assistant.to and see what are their differences

Cal.com logo Cal.com

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

Assistant.to logo Assistant.to

GoToMeeting. Put your GoToMeeting link in the Assistant. to "Location" field. Once the recipient selects a time, you will both receive an invite with a unique GoToMeeting link.
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • Assistant.to Landing page
    Landing page //
    2022-12-16

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.

Assistant.to features and specs

  • Ease of Scheduling
    Assistant.to simplifies the process of scheduling meetings by allowing users to propose multiple time slots directly within emails, which recipients can then confirm with a single click.
  • Integration with Major Calendars
    The tool integrates seamlessly with Google Calendar and Office 365, ensuring that schedules are automatically updated without manual input.
  • User-Friendly Interface
    The interface is intuitive and user-friendly, reducing the learning curve associated with adopting a new tool.
  • Email-based Communication
    All scheduling is done within the context of email, eliminating the need for users to navigate to an external website or app.
  • Time Zone Management
    Assistant.to automatically adjusts time zone differences, making it easier to schedule meetings with international participants.

Possible disadvantages of Assistant.to

  • Limited Platform Compatibility
    Assistant.to is primarily designed for Google Calendar and Office 365, potentially limiting its usefulness for users of other calendar systems.
  • Lack of Advanced Features
    The tool lacks some advanced features found in more comprehensive scheduling software, such as group scheduling, in-depth analytics, and reminders.
  • Dependency on Email
    Since all scheduling is done via email, it may not be as effective for users who prefer using dedicated scheduling apps or platforms.
  • Privacy Concerns
    As with any third-party tool, there may be privacy concerns related to granting access to your calendar and email data.
  • Potential for Miscommunication
    The tool could potentially introduce miscommunication if recipients do not understand how to use it, especially if they are not familiar with such tools.

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

Assistant.to videos

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

Add video

Category Popularity

0-100% (relative to Cal.com and Assistant.to)
Productivity
100 100%
0% 0
Appointments and Scheduling
Appointment Scheduling
80 80%
20% 20
Event Scheduling
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 Assistant.to

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

Assistant.to Reviews

The 14 Best Meeting Scheduling Tools for 2022
While only allowing one-to-one meetings, Assistant.to is still one of the most used meeting scheduling apps out there. It’s easy to use as a Google Chrome extension, and it’s free for Gmail. You start by blocking the times you’re free on your calendar. Your participants can then choose the best time for them and by that confirm the meeting. The solution also remembers your...
11 of the Best Meeting Scheduler Tools to Organize Your Day
Assistant.to lets you work directly from Gmail and Google Calendar to select available meeting times and share those open slots with the person you're trying to schedule a meeting with.

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 / 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 / 6 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 / 8 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 / over 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

Assistant.to mentions (0)

We have not tracked any mentions of Assistant.to yet. Tracking of Assistant.to recommendations started around Mar 2021.

What are some alternatives?

When comparing Cal.com and Assistant.to, 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.

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

Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.

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

BookSteam - BookSteam Online booking and appointment scheduling software for businesses worldwide. Easy to use, cloud based web scheduler that includes class and group bookings. Calendar management and schedule organization, trusted by thousands.

zcal - zcal is the fastest way to schedule every meeting for Free and make it personal.