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Iris VS Cal.com

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

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Iris logo Iris

The fastest web framework for Go in (THIS) earth

Cal.com logo Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
  • Iris Landing page
    Landing page //
    2021-07-31
  • Cal.com Landing page
    Landing page //
    2023-10-08

Iris features and specs

  • Blue Light Filtering
    Iris software filters out harmful blue light from screens, which can help reduce eye strain and improve sleep quality.
  • Brightness Control
    Iris allows users to control screen brightness levels, which can help create a more comfortable viewing experience in varying lighting conditions.
  • Multiple Modes
    The software offers various modes including Health, Sleep, and Reading, each optimized for different activities, adding convenience and versatility.
  • Automatic Adjustments
    Iris can automatically adjust your screen settings based on the time of day, reducing the need for manual changes and improving user experience.
  • Cross-Platform Compatibility
    Iris supports multiple operating systems like Windows, macOS, and Linux, making it accessible to a wide range of users.
  • Minimalistic Interface
    The application features a user-friendly and minimalistic interface that makes it easy to navigate and customize settings.

Possible disadvantages of Iris

  • Cost
    While Iris offers a free version, its full range of features is locked behind a paywall, which may not appeal to all users.
  • Performance Issues
    Some users have reported experiencing slowdowns and performance issues on older hardware when using Iris.
  • Complex Configuration
    Advanced settings can be overwhelming for non-technical users, requiring a learning curve to fully understand and utilize all features.
  • Limited Features in Free Version
    The free version of Iris is somewhat limited in functionality, pushing users toward purchasing a subscription for full access.
  • Compatibility Issues
    In some cases, users have reported compatibility issues with certain applications or operating system updates.
  • No Mobile Version
    Iris currently does not offer a mobile version, limiting its usability to desktop and laptop computers only.

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.

Analysis of Iris

Overall verdict

  • Iris is considered a good choice for individuals seeking to minimize eye strain and protect their vision. Its effectiveness, coupled with an easy-to-use interface and a variety of adjustable features, makes it a popular option among users who spend extensive time in front of digital screens.

Why this product is good

  • Iris (iristech.co) offers software solutions that focus on reducing eye strain and improving sleep quality by controlling the blue light emitted from screens. Their tools are designed to adjust brightness without PWM, offer flexible scheduling options, and provide health-oriented eye protection features. Many users appreciate its customizable settings and ease of use, which can lead to increased productivity and reduced discomfort during long hours of screen time.

Recommended for

    Iris is recommended for professionals, students, gamers, and anyone who experiences extended screen exposure. It is particularly useful for those who suffer from digital eye strain, disrupted sleep patterns due to screen use, or those simply looking to enhance their visual comfort.

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.

Iris videos

+ Add

Something Is WRONG With The IRIS SKin?! Iris Pack Review & Gameplay (Is The Iris Pack Worth $4.99?)

More videos:

  • Review - THE IRIS PACK is Here! Before You Buy! Combos + Gameplay! (Fortnite Battle Royale)
  • Review - Best Chapter 2 Combos | Iris | Fortntie Skin Review

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

Category Popularity

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

Iris

Cal.com

Health And Fitness
100 100%
Health And Fitness
0% 0
Appointments and Scheduling
0 0%
Appointments and Scheduling
100% 100
Time Tracking
100 100%
Time Tracking
0% 0
Calendar And Scheduling
0 0%
Calendar And Scheduling
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 Iris and Cal.com

Iris Reviews

We have no reviews of Iris yet.
Be the first one to post

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

Social recommendations and mentions

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

Iris mentions (1)

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
View more

What are some alternatives?

When comparing Iris and Cal.com, you can also consider the following products

Workrave - Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI).

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.

stretchly - break time reminder app

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

CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder

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

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