Science, Not Just a Filter
CatLens simulates feline vision using a 9-step process grounded in veterinary ophthalmology research.
Real-Time Vision Simulation
Watch your world transform through feline eyes in real time. Adjusted colors, enhanced night sensitivity, and a wider field of view — all at 60+ FPS.
- Dichromatic color spectrum
- 200-degree wide-angle view
- Enhanced night vision mode
Beautifully Simple Interface
One tap is all it takes. No menus, no complexity — just point your camera and toggle between human and cat vision.
- One-tap toggle
- Cat-themed UI design
- 14 languages supported
Learn While You Explore
Every session teaches you something new. Random facts, scientific explanations, and insights into how your cat perceives the world.
- Curated science facts
- Veterinary research-based
- Shareable insights
Three Taps to Cat Vision
No setup. No account. Just download and see.
Open the App
Launch CatLens and your camera activates instantly. No sign-up required.
Toggle Cat Vision
Tap the eye button to switch between human and feline vision in real time.
Explore & Learn
Discover how your cat sees the world. Share fun facts with friends.
Human Eyes vs Cat Eyes
Cats see fewer colors but dominate in low light and peripheral vision.
Human Vision
Cat Vision
Loved by Cat People Everywhere
“I showed my cat the screen and she was genuinely confused. This is so cool for understanding how differently they see!”
Sarah M.
App Store Review
“As a biology teacher, I use this in class to teach students about animal vision. The scientific accuracy is impressive.”
Dr. James K.
Google Play Review
“Simple, beautiful, and educational. I finally understand why my cat ignores red toys but goes crazy for blue ones.”
Emily R.
App Store Review