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Cal.com VS OpenSSH

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

Klartab
Log hours, export reports, and manage approvals - built for freelancers. featured
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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.

OpenSSH logo OpenSSH

OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
  • Cal.com Landing page
    Landing page //
    2023-10-08
  • OpenSSH Landing page
    Landing page //
    2018-09-29

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.

OpenSSH features and specs

  • Security
    OpenSSH provides secure encrypted communications between two untrusted hosts over an insecure network, offering strong encryption standards and authentication mechanisms.
  • Open Source
    As an open-source project, OpenSSH is free to use and benefits from contributions and transparency from a wide community of developers and users.
  • Portability
    OpenSSH is highly portable and available across many operating systems, including Linux, macOS, and Windows, making it a versatile tool for different environments.
  • Rich Feature Set
    In addition to basic SSH functionality, OpenSSH includes features like secure file transfer (SFTP and SCP), tunneling, forwarding, and key management.
  • Strong Community Support
    OpenSSH benefits from extensive community and developer support, ensuring regular updates, patches, and a wealth of documentation and user discussions.

Possible disadvantages of OpenSSH

  • Complexity
    Configuring and managing OpenSSH can be complex, especially for beginners, and requires a good understanding of security principles and SSH protocols.
  • Performance Overhead
    Encryption and decryption processes can introduce performance overhead, which can be a concern in environments with high traffic or limited resources.
  • Dependency on Proper Configuration
    The security of OpenSSH heavily depends on proper configuration; misconfigurations can lead to vulnerabilities, defeating the purpose of using a secure protocol.
  • Limited GUI Tools
    OpenSSH primarily operates via command-line interface (CLI), which may not be as user-friendly as graphical user interface (GUI) tools for some users.
  • Compatibility Issues
    While OpenSSH is highly portable, there can be compatibility issues with certain legacy systems or non-standard SSH implementations.

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

OpenSSH videos

+ Add

Ubuntu Server 18.04 Administration Guide Part 02 - Securing OpenSSH

More videos:

  • Review - Linux Commands for Beginners 22 - Remote Management with OpenSSH

Category Popularity

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

Cal.com

OpenSSH

Appointments and Scheduling
100 100%
Appointments and Scheduling
0% 0
SSH
0 0%
SSH
100% 100
Calendar And Scheduling
100 100%
Calendar And Scheduling
0% 0
Server Management
0 0%
Server Management
100% 100

User comments

Share your experience with using Cal.com and OpenSSH. 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 OpenSSH

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

OpenSSH Reviews

Top 10 Best MobaXterm Alternatives for Windows, macOS & Linux In 2021
OpenSSH is a safe and secure alternative to tools like MobaXterm (for which the password flows in clear on the network), however it is much more than that considering that it likewise permits to release remote commands (like rsh, or remsh), but also to transfer whole files or directories (like rcp). OpenSSH is available in the form of a daemon and a customer, the daemon...
Source: www.techblitz.org
30 best PuTTY alternatives for SSH clients for 2020
OpenSSH is a widely-used open source free emulator for Windows, Mac OS, Linux, and iOS. It is protected by SSH and incorporates SCP and SFTP for file transfers.
Source: www.comparitech.com

Social recommendations and mentions

Based on our record, Cal.com seems to be a lot more popular than OpenSSH. While we know about 60 links to Cal.com, we've tracked only 1 mention of OpenSSH. 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 / 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 / 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

OpenSSH mentions (1)

  • is ssh (OpenSSH) impacted by CVE-2022-3786 and CVE-2022-3602
    I haven't found a clear answer to this. After checking openssh.com I haven't found any mention. Source: over 3 years ago

What are some alternatives?

When comparing Cal.com and OpenSSH, 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.

Symantec Data Loss Prevention - Fully protect your data with the comprehensive detection technologies and unified policies of Symantec's industry leading Data Loss Prevention (DLP).

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

Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.

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

Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.

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