Chromatic Vision Simulator

Chromatic Vision Simulator

by Kazunori Asada

58 ratings
93 reviews
Free

Details

Released
August 31, 2010
Updated
October 30, 2026

Features

Chromatic Vision Simulator screenshot #1 for iPhone
Chromatic Vision Simulator screenshot #2 for iPhone
Chromatic Vision Simulator screenshot #3 for iPhone
Chromatic Vision Simulator screenshot #4 for iPhone
Chromatic Vision Simulator screenshot #5 for iPhone
Chromatic Vision Simulator screenshot #6 for iPhone
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iphoneDuo
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About

Simulate how individuals with various color vision deficiencies perceive the world. Compare real-time camera feeds or photos side-by-side with normal vision and different deficiency types. Analyze color differences and identify specific color names.

✓Real-time camera and photo simulation
✓Side-by-side comparison of vision types
✓Adjustable simulation strength
✓Appearance and Difference modes
✓Color name identification
✓Supports front and rear cameras
✓Save simulated images
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What's New in Chromatic Vision Simulator

4.0.0

October 30, 2026

- Rebuilt from the ground up, with the simulation now based on up-to-date color science. - New Difference mode: shows the difference between the original and simulated colors as brightness (limit set with the slider). Switch with a one-finger swipe on the toolbar, a two-finger swipe on the screen, or in Settings. - New Settings screen. Open it with the gear. - New "Show Color Name": the color cursor shows the name and values of the color at the point you choose. - Choose in Settings whether to write the type and strength on saved images. - Save with the volume button. The save sound can also be set. - Wide color gamut (Display P3) display and saving ("Color Space" in Settings). - Colors change more naturally when the strength is set in between. - What is in the middle of the screen stays in the middle when you zoom. - Double-tap to reset the zoom and position. - Works with VoiceOver. - Supports the foldable iPhone (iPhone Duo). - New button icons.

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User reviews

Kind of works

If you know a bit about color blindness. You know it’s some cones of color perception overlap. But I feel like the app just assumes the entire wavelength the cones pick up overlap based on which colorblind type you pick. So my mom just assumes all reds I see are brown but I’ve never mixed up a red and brown in my life. It’s good for picking up girls tho
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fun to show others

as someone who’s colorblind, i get the question “what color is this? what do you see?” a lot. Whenever this question gets brought up i just show them this app and let them look around. The reactions are always fun and it’s always interesting to hear what they have to say. It’s really helpful understanding what i’m missing out as well. The reactions from other people tells me that i see the world in very dull colors.
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Please add a video function

I’ve been using this app for about a year now to help people understand colorblindness and it is so much easier and more effective than trying to tell people verbally what the world looks like to me. I really think the cherry on top of this app would be to add a function where we could export videos using the colorblind filters, as I have not been able to find any other application that provides that feature.
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サイコーです

毎日使ってます!!

Amazing easy accessibility tool

So many over-complicated colorblind simulators out there but this one outperforms them all. It’s simple and no frills, has three colorblind type variations, and the combo of camera and photo library options means I can basically test anything I need to when it comes to color accessibility. This tool is a godsend for anyone working in digital compliance!
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Developer apps

FAQ

What is Chromatic Vision Simulator?

Chromatic Vision Simulator is a tool that simulates how people with different types of color vision deficiencies see the world. It allows you to compare normal color vision with simulated deficiencies using your device's camera or photos.

How does Chromatic Vision Simulator work?

The app calculates simulated images based on the working of cone cells that perceive color, mimicking various color vision deficiencies like protanope, deuteranope, and tritanope. You can adjust the simulation strength from 0 to 100%.

Can I compare different vision types simultaneously?

Yes, the app allows you to divide the screen into up to four sections to compare 'Normal Color Vision,' 'Protanope,' 'Deuteranope,' and 'Tritanope' side-by-side for the same scene.

Does Chromatic Vision Simulator show color names?

Yes, you can turn on 'Show Color Name' to display the systematic or traditional name of the color at the cursor's position, along with values like Munsell and CIELAB.

What devices is Chromatic Vision Simulator available on?

Chromatic Vision Simulator is available for iPhone and iPad. It also supports the outer and inner screens of foldable iPhones.

Is Chromatic Vision Simulator free to use?

Yes, Chromatic Vision Simulator is available for free. It does not have in-app purchases or advertisements.

How often is Chromatic Vision Simulator updated?

The latest version is 4.0.0, released on October 30, 2026. The app was initially released on August 31, 2010, indicating a history of updates.

Does Chromatic Vision Simulator have ads?

No, Chromatic Vision Simulator is ad-free. It does not contain advertisements, providing an uninterrupted user experience.