# In Their Eyes — Color blindness simulator

> Color blindness simulator using real-time camera and photo analysis. (iPhone/iPad app by Aaron Moeller.)

- Source: https://appshunter.io/ios/app/in-their-eyes/id6757778630 (this page in markdown: same URL + `.md`)
- Developer: [Aaron Moeller](https://appshunter.io/developer/1784879132)
- Category: Utilities, Education
- Price: Free (on sale, was $2.99)
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-08-23
- Data updated: 2026-09-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/in-their-eyes/id6757778630/reviews.md

## What is In Their Eyes?

Ever wondered how the world looks to someone who's color blind? In Their Eyes lets you see it for yourself.

Point your camera at anything and watch the colors shift in real time to match how a person with color vision deficiency actually perceives them. It's an instant, eye-opening way to understand how color blind people actually see the world.

Color blindness affects roughly 1 in 12 men and 1 in 200 women, over 300 million people worldwide. Most of us never get to experience what that's like. Now you can.

SEE THROUGH THEIR EYES, LIVE
• Real-time camera simulation, just point and look
• Switch instantly between the major types of color blindness
• Take pictures with the color blind filter switched on

FOUR TYPES OF COLOR VISION DEFICIENCY
• Protanopia: red-blindness
• Deuteranopia: green-blindness (the most common form)
• Tritanopia: blue-blindness
• Achromatopsia: total color blindness (grayscale)

WORKS ON YOUR PHOTOS TOO
Load any picture from your library and see it transformed — perfect for checking how you photos look to a color blind person.

CAPTURE AND COMPARE
Save a side-by-side of the normal and simulated view to your photo library, so you can share and review what you discovered.

BUILT ON REAL SCIENCE
The simulations use scientifically validated color transformation matrices (Machado, Oliveira & Fernandes, 2009), the same approach used in professional accessibility tools.

PERFECT FOR
• Anyone who wants to understand how a colorblind friend or family member sees the world
• Teachers and students exploring how vision works
• Designers checking that their work is accessible to everyone

YOUR PRIVACY COMES FIRST
Everything happens on your device. No account, no tracking, no data collection — your camera feed and photos never leave your phone.

See the world in their eyes.

## Key features

- Real-time camera simulation
- Simulates four types of color vision deficiency
- Apply filters to existing photos
- Capture side-by-side comparisons
- Scientifically validated simulations
- Privacy-focused, on-device processing


## Frequently asked questions about In Their Eyes

### What is In Their Eyes?

In Their Eyes is a utility app that simulates various types of color blindness. It allows users to see how the world looks to individuals with color vision deficiencies through their device's camera or by processing existing photos.

### What types of color blindness does In Their Eyes simulate?

In Their Eyes simulates four main types of color vision deficiency: Protanopia (red-blindness), Deuteranopia (green-blindness), Tritanopia (blue-blindness), and Achromatopsia (total color blindness).

### Can I use In Their Eyes on my photos?

Yes, In Their Eyes allows you to load any picture from your device's library and apply the color blind filters to see how it appears to someone with a color vision deficiency.

### Does In Their Eyes collect my data?

No, In Their Eyes prioritizes user privacy. All processing happens on your device, and your camera feed and photos never leave your phone. No account or tracking is required.

### How accurate are the simulations in In Their Eyes?

The simulations in In Their Eyes are built on scientifically validated color transformation matrices (Machado, Oliveira & Fernandes, 2009), the same approach used in professional accessibility tools.

### Is In Their Eyes available on Android?

Based on the provided data, In Their Eyes is currently supported on iPhone and iPod devices. Information regarding Android availability is not specified.

### How often is In Their Eyes updated?

The latest version of In Their Eyes is 1.2, which was last updated on September 1, 2026. This indicates a recent update, suggesting ongoing development and maintenance.

### What is the age rating for In Their Eyes?

In Their Eyes has an age rating of 4+, making it suitable for a wide range of users, including children and adults interested in understanding color vision.

## Version history (last 3 releases)

### 1.2 — 2026-09-01

Updated App Store screenshots.

### 1.1 — 2026-08-24

Improvements

### 1.0 — 2026-08-23

No release notes.

## More apps by Aaron Moeller

- [Tempo Coffee Timer](https://appshunter.io/ios/app/tempo-coffee-timer/id6739330299)

All apps by Aaron Moeller: https://appshunter.io/developer/1784879132

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*