STOP
MOUTH‑
BREATHING.
🔒 Your camera never leaves your browser. No account. No server. Disconnect wifi — it still works.
100%
local · never leaves your browser
$4.99
once · every session · forever
< 10ms
detection latency
The Problem
You've been mouth-breathing for hours. You just didn't know it.
During focused work, your jaw relaxes. Your mouth falls open. You don't notice — but your body does. Oxygen efficiency drops. Cortisol rises. Focus collapses. You blame the coffee.
73%
Chronic during screen time
73% of people mouth-breathe chronically during screen work. Most are unaware it's happening.
↑50%
Cortisol elevation
Chronic mouth-breathing elevates cortisol by up to 50%. More stress, less focus, worse sleep.
~0
Body warnings you'll notice
There are no sensations. No pain. No signal. Your jaw just drifts open and stays there.
How It Works
Three steps. No mercy.
Calibrate
30 seconds
Sit how you're supposed to sit. Close your mouth. Click calibrate. MewCop locks in your jaw baseline in 3 seconds. That's your threshold.
Work Normally
Silent background watch
Code, game, grind. Keep MewCop open anywhere on your screen. Near-zero CPU. No internet required. It watches.
Get Caught
Mouth open 2.5s?
Full-screen blast. Alarm. OS notification hits your desktop in any app. Focus Score drops. The overlay clears the instant you close your mouth.
What Getting Caught Looks Like
Full-screen disruption — clears the instant you close your mouth
Your camera never leaves your browser. No account. No data. No upload endpoint. Disconnect wifi mid-session — it keeps working.
Pricing
Less than the energy drink
ruining your focus.
FAQ