Software Alternatives, Accelerators & Startups

The Interval Timer VS Iris

Compare The Interval Timer VS Iris and see what are their differences

The Interval Timer logo The Interval Timer

Free online interval timer for HIIT, Tabata, EMOM, AMRAP workouts. Customizable work/rest periods, rounds, cycles, and sounds. Works on any device.

Iris logo Iris

The fastest web framework for Go in (THIS) earth
  • The Interval Timer
    Image date //
    2025-04-01
  • Iris Landing page
    Landing page //
    2021-07-31

The Interval Timer features and specs

  • User-Friendly Interface
    The Interval Timer offers an intuitive and easy-to-navigate interface, making it accessible for users of all experience levels.
  • Customizable Settings
    Users can personalize their workout sessions by adjusting the intervals, rest periods, and number of sets, catering to a variety of fitness routines.
  • Web-Based Access
    Being a web-based application, The Interval Timer is accessible from any device with an internet connection without the need for downloads or installations.
  • No Account Required
    Users can access and utilize the timer without needing to create an account, ensuring quick and hassle-free usage.
  • Visual and Audio Cues
    The application provides both visual and audio signals, making it easier to follow along and stay on track during workouts.

Possible disadvantages of The Interval Timer

  • Internet Dependency
    As a web-based tool, it requires a reliable internet connection, which can be a limitation for users in areas with poor connectivity.
  • Limited Advanced Features
    While suitable for most users, The Interval Timer might lack some advanced features and integrations that professional athletes or trainers might need.
  • Ads and Pop-Ups
    The presence of ads and pop-ups can interrupt the user experience, especially during intense workout sessions.
  • No Offline Access
    Unlike mobile apps that can operate offline, The Interval Timer cannot be used without an internet connection, limiting its usability in certain situations.
  • No Mobile App
    The lack of a dedicated mobile app can be inconvenient for users who prefer native mobile functionality and features.

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.

Analysis of The Interval Timer

Overall verdict

  • The Interval Timer is a solid, no-frills web-based timer that makes it easy to set up and run interval-based workouts directly in your browser without downloads or accounts.

Why this product is good

  • Free and accessible directly from any web browser with no installation required
  • Simple, intuitive interface for setting up work and rest intervals
  • Useful for a wide range of timed activities like HIIT, Tabata, and circuit training
  • Audio and visual cues help you stay on track without watching the screen
  • Customizable rounds and durations to fit different workout styles

Recommended for

  • People doing HIIT, Tabata, or circuit training workouts
  • Home exercisers who want a quick, no-cost timer
  • Fitness trainers running timed group sessions
  • Anyone needing a simple browser-based interval timer without app downloads
  • Users who want structured timing for meditation, stretching, or study sessions

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.

The Interval Timer videos

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Iris videos

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  • Review - Best Chapter 2 Combos | Iris | Fortntie Skin Review

Category Popularity

0-100% (relative to The Interval Timer and Iris)
Health And Fitness
10 10%
90% 90
Time Tracking
10 10%
90% 90
Online Timer
100 100%
0% 0
Productivity
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Iris seems to be more popular. It has been mentiond 1 time 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.

The Interval Timer mentions (0)

We have not tracked any mentions of The Interval Timer yet. Tracking of The Interval Timer recommendations started around Apr 2025.

Iris mentions (1)

What are some alternatives?

When comparing The Interval Timer and Iris, you can also consider the following products

Interval Trainer Pro - Interval Trainer Pro is a cutting-edge tool built to serve people interested in HIIT Crossfit Interval Training.

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

Interval Timer - Interval Timer is a mobile application that helps you stay consistent in your workouts.

stretchly - break time reminder app

Workout Time! - An app for managing and performing timed workouts.

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