Sim Daltonism App Reviews
Fantastic update
Outstanding application, unique and useful (for color blindness analysis). The updated version is a major redesign and improvement
We are doing some accessibility testing for our site and this tool has been immensely helpful in choosing the correct colors for some important charts are graphs. The only issue I had was on multiple monitors it would crash moving between screens. If that bug is fixed this is a 5 star app for accessibility!
I’ve long used SimDaltonism as a stand-alone app to evaluate how websites appear to those affected by many types of color blindness, and I’m glad to see it’s still around. Any time I use color, I like to do a quick run through all the types (by typing Command-1 through Command-9 in sequence) to get an idea of how differentiable the selected colors are to all users. It’s an important tool supporting what should be a content developer’s highest goal: Ensuring content is equally accessible to all.
A must-have for designing with accessibility in mind and for analyzing someone else’s work. Also great for educating other designers on how people with color blindness actually see their work.
Love the app … hopefully updated for Apple Silicon
I’ve used this app for years in testing graphic, web, and product designs. Unfortunately, as I just got notified, unless it gets an update to work with Apple silicon, it won’t open in future OS updates.
Saves my sanity!
This app is so helpful. I’m a UX designer with many family and friends that are colorblind. This is the closest solution I’ve found to what I’d really like to have…glasses I can put on to make me colorblind. Thanks for all you do!
Awesome and not limited to a specific software
Different from Figma plugins you can use this with anything you see in your screen. Its great!
Only Shows My Desktop
This is great, if all I want to do is see my wallpaper filtered. Actually using this with design software or a browser seems to be out of the question. It does not matter what is directly below the Sim Daltonism window, it ignores it, and shows me my desktop wallpaper in the filter. There are no settings to change this.
Simple. Affective.
As an accessibility advocate at work, Sim Daltonism is indispensable. It is a simple and affective tool to quickly demonstrate how colors choices affect different populations.
Really useful tool for UX designers
I love this app! I am a UX designer specializing in data visualization and dashboard design. Sim Daltonism is one of my permanent toolbar apps, because it helps me get a gut check for whether my selected colors are accessible.
A great artist's tool.
This is super useful for making sure my work reads for a colorblind client, and also super useful for quickly desaturating my art to make contrast problems jump off the screen at me! I can make a layer at the top of the stack to desaturate everything, but this slows down Illustrator a lot in really complex work. Sim Daltonism keeps everything moving nice and fast.
Great tool to educate business partners
I lean heavily on this tool to help describe and explain contrast issues. I recommend for anyone working in UX or UI design and development.
Huge Timesaver
Sim Daltonism is such a valuable tool. As of this writing, there has yet to be an accessible color palette generator that simultaneously checks for contrast and colorblind compatibility. Sim solves this problem: using a pallet generator that checks contrast (such as Adobe Color), place the Sim lens to overlap the palette half way, so you can see both the full color and colorblind view. This way, you can adjust the true color for contrast and be certain it is colorblind compatible—no more back-and-forth. P.S. I'll add the 5th star when you release an Andriod mobile version. :-) Thanks!
Terrific shortcut for designers!
I use Sim Daltonism to simultaneously check for colorblind accessibility as I create color palettes that pass WCAG contrast. By positioning SD's lens to stretch halfway across the row of swatches in the WCAG color palette generator, I can see how well they work for folks with CVD. No more jumping back and forth between separate checkers, tweaking and tweaking to get it right for both. Bonus: It's also a great for teaching clients color mindfulness. "Umm, y'know, that chart makes your competition stand out more…" ;-)
I love this app!
I've been using Sim Daltonism for years as part of my UX Design work and I love how simple and effective it is. And even more, that it's free. A wonderful product helping us make the world more accessible. For all.
Useful, easy, simple.
This is my go-to app for quickly simulating visual differences. It makes it easy to do comparisons and get screenshots of the differences side by side.
Great Tool
Great tool. Use it most days as a UX designer. One quibble: when you close all the windows, the app should quit. This is the behavior I would expect from a utility app like this.
Peace of Mind
I prepare charts and maps with colors for audiences of people I don't necessarily know well. It's great have this app to check to make sure that the colors I choose are visible to all.
Super useful
...for anyone designing any screen user interactions or interfaces. Super educational too!
Super useful when making scientific figures
Nice to be able to check anything
Very Useful! Easy to use! Dependable
I highly recommend this app. Making presentations and user interfaces for all Humans is my goal.
Simple to use and very effective
More designers should take into account the perspective of colorblind people. I wonder if this application should provide some more knowledge for the user, such as : * which types of colorblindness are more common than others * how colorblindness works and why the colors change the way they do for each type
Must own for Designers
This app is really cool. As a UX and UI designer this is one of the most amazing apps I've downloaded through the app store. Incredibly well done on the concept and the execution. This is a great tool to have while designing. Completely changes my workflow.
Great for SHOWING people how to design
This is one of my favorite accessiblity tools. It's so easy to whip out and show design teams when things do and don't assist accessibility and why it's important to consider accurately and test with everything we design. Thanks for the great app!
Useful for ensuring my color choices are accessible
Very helpful for ensuring colorblind team members will also be able to clearly see things I'm intending to make visible with color.
Great tool
This tool is an amazing time saver for testing color in most any situation
I've Been Using This Tool for Ages
It does exactly what it says on the tin. It also has a pretty wide range of simulations (beyond the three that most apps have), and it is incredibly smooth.
Works perfectly
As a data visualization designer, I've found this to be the best tool to confirm readability for a variety of eyesights. What a great resource.
Great tool - works for ANY other application
I love that if you can see it on your Mac screen then Sim Daltonism will work. My primary machine is a Mac, but I work in the Windows world all the time mostly working with GIS and doing cartography. By using remote desktop and virtual machines I can still use Sim Daltonism to help check my graphics. Thanks to the developer.
Works perfectly!
Had to update my privacy settings for Catalina
From a UX Designer
This app is one of my most-used tools as a UX Designer in the professional world. Simply put, game-changer!
Must-have for accessibility work
If you do web design or graphics work, this is a really vital tool.
Not working on Catalina
I desperately want to use/try this app but I can't get it to work on Catalina (10.15.1). Giving two stars for pure hope but am not able to use it.
Life-saver
Still the best way to roll through all the relevant color blindness checks.
So easy to use!
This is such a great tool to have for designing color-blind-friendly user interfaces. Not having to export an image to check it is fantastic.
Indispensable tool for checking design against CVD
I use and highly recommend SD to my design colleagues as it provides a completely independent and non-intrusive overlay to similuate how users with color vision deficiencies see the interfaces we're building, and if they'll notice the differences in state change. My only problem with the app is that it doesn't seem to currently handle the dark mode in macOS correctly, which causes the icons used for controlling the type of CVD simulated to become essentially invisible (black icons on a black toolbar). It's an ironic oversight, and I kind of have to guess where the icons are, usually hitting the refresh-rate menu instead. Should be a simple fix, so I hope the developer can take a minute to update the app.
Great little app for designers – and am glad that it is free
A must-have for designing with accessibility in mind and for analyzing someone else’s work. Also great for educating other designers on how people with color blindness actually see their work.
An old standby lives up to its reputation
I’ve long used SimDaltonism as a stand-alone app to evaluate how websites appear to those affected by many types of color blindness, and I’m glad to see it’s still around. Any time I use color, I like to do a quick run through all the types (by typing Command-1 through Command-9 in sequence) to get an idea of how differentiable the selected colors are to all users. It’s an important tool supporting what should be a content developer’s highest goal: Ensuring content is equally accessible to all.
Awesome
We are doing some accessibility testing for our site and this tool has been immensely helpful in choosing the correct colors for some important charts are graphs. The only issue I had was on multiple monitors it would crash moving between screens. If that bug is fixed this is a 5 star app for accessibility!