See the world through your dog’s eyes
Dog Vision Simulator is an iOS app that helps dog owners understand how their canine companions perceive the world. Using real-time camera processing, the app simulates visual differences based on breed-specific characteristics, including color perception, visual acuity, field of view, and motion sensitivity.
The app uses scientifically-based parameters to simulate:
git clone https://github.com/yourusername/dog-vision-simulator.git
cd dog-vision-simulator
open DogVisionSimulator.xcodeproj
Build and run on your device or simulator using Xcode.
| Breed Type | Visual Characteristics |
|---|---|
| Short-nosed (Brachycephalic) | Better frontal vision, improved depth perception (Pugs, Bulldogs, Boxers) |
| Long-nosed (Dolichocephalic) | Wider peripheral field, reduced frontal overlap (Greyhounds, Collies, Whippets) |
| Medium-nosed (Mesocephalic) | Balanced vision, moderate field of view (Labrador, German Shepherd, Beagle) |
| Aspect | Dogs vs Humans |
|---|---|
| Color Vision | Dichromatic (blue/yellow) vs Trichromatic (RGB) |
| Visual Acuity | 20/75 vs 20/20 |
| Field of View | 240-250° vs 180° |
| Motion Detection | Superior - can detect movement at 900m |
| Night Vision | 5x better in low light |
| Refresh Rate | 70-80 Hz vs 60 Hz (sees flicker in old TVs) |
Last Updated: October 10, 2025
Dog Vision Simulator does NOT collect, store, or transmit any personal data. Specifically:
The app requires camera access to function. Camera feed is:
We will update this policy if our practices change. Check this page for updates.
For privacy questions, contact: weldonjack@gmail.com
Q: Is this scientifically accurate?
A: Yes! The simulation is based on peer-reviewed research in veterinary ophthalmology and canine vision studies. However, it’s for educational purposes only.
Q: Why do dogs see fewer colors?
A: Dogs have only two types of color receptors (cones) compared to humans’ three. They see the world in shades of blue, yellow, and gray.
Q: Can dogs see TV screens?
A: Yes, but older TVs may appear to flicker due to dogs’ higher refresh rate perception. Modern LED/LCD screens work better.
Q: Do all breeds see the same?
A: No! Skull structure affects field of view and depth perception. Long-nosed breeds have wider peripheral vision, while short-nosed breeds have better frontal vision.
Q: Is my camera feed being recorded?
A: Absolutely not. All processing happens locally on your device in real-time. Nothing is saved or transmitted.
Q: Does this work on iPad?
A: The app is optimized for iPhone but should work on iPad with camera access.
Found a bug? Please open an issue on GitHub:
Contributions are welcome! Please feel free to submit a Pull Request.
git checkout -b feature/AmazingFeature)git commit -m 'Add some AmazingFeature')git push origin feature/AmazingFeature)This app is based on research from:
This project is licensed under the MIT License - see the LICENSE file for details.
MIT License
Copyright (c) 2025 Jack Weldon
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
**Jack **
Made with 🐾 for dog lovers everywhere
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