Jaw · Four-Finger Test
Guarded
Your jaw stops early. Your masseter is holding on.
For Anastasia · August 2026
Look up.
Did your forehead move.
Now it knows.
Look-up Test
Below the Skin · Prototype · Swift + ARKit
The camera
ARKit turns a face into 52 coefficients, each one a number between 0 and 1, each one a movement. Below the Skin reads 21 of them today.
52coefficients, each 0 to 1
1,220points in the ARKit face mesh
60times a second, at its fastest
2017every iPhone since the X
All 52 · the 21 in use
Point at a name. The face does that one movement.
Tension Map
Ninety seconds
About ninety seconds in front of the camera. Each test reads one thing, and the map keeps it.
Jaw · Four-Finger Test
Guarded
Your jaw stops early. Your masseter is holding on.
Eyes and Forehead · Look-up Test
Helping
Your forehead helps you look up. That is where the line comes from.
Symmetry · Symmetry Check
Leaning
One side works harder. Your face has a favourite.
Her method
I improve faces by fixing what’s below the skin.
Anastasia Goron
Half of this is your hands. Find where the tension sits, release it, then teach the muscle to lift. The app runs that order, in her words.
The audit takes ninety seconds and shows you where your tension sits.
Knuckles on the jaw muscle, just below the cheekbone. Small circles, slow. Breathe out through the mouth.
The Wow: 8 seconds, 3 sets. Then the Cheek Lifter, 10 reps. The camera counts them and tells you when your forehead is helping.
The days you showed up, and what your face said about them. No score, no curve.
28exercises in the library
5routines, in her order
60 sof release, untracked on purpose
Sixty seconds of the session are hands on the face. Fingers cover the muscle. The camera has nothing left to read, so the app stops counting and says so: Hands on. I stop watching here — your fingers are in the way, and that is the point.
Her routines
Her sequences, in the order she does them. The last one is rebuilt from her rule — she never published that one.
Live
The camera is on while you work. It keeps the count, it sees the muscle that came along, and it says so in her words — while the rep is still running.
01it counts
The hold runs only while the jaw stays open. Let it fall and the eight seconds start again. Three sets, and nobody has to watch a clock.
cueOpen wide. Like a yawning lion.
voiceThere. Hold it.
10
Reps02it notices
A rep lands when the smile crosses the line and comes back down. Ten of them. Both sides are read on their own, so the side that does less has nowhere to hide.
cueLips over teeth. Smile toward your ears.
voiceCheeks lifted. Forehead stayed quiet.
03it speaks
The Cheek Lifter watches two neighbours: the forehead and the under-eyes. Cross either limit and the app names the muscle that came along, while the rep is still running.
voiceI read the cues out loud while your hands are busy.
The count runs while the muscle does.
Anatomy Mirror
The app draws twelve muscle regions on your own face and names what each one does. Move one and watch it light up.
Your clenching muscle. It works all night without asking.
The fan above your ear. It closes your jaw with the masseter.
Your surprise muscle. It lifts your brows — and it loves to help with everything.
The sheet across your skull. Your forehead pulls on it all day.
This one sits below the camera’s map. Here it is on the diagram.
The two between your brows. They pull down while you concentrate.
The ring around your eye. It squints, it blinks, it rarely rests.
It lifts your cheek when you smile. This is the one we train.
The ring around your mouth. Pucker, whistle, drink through a straw.
Your cheek wall. It holds food against your teeth while you chew.
It pulls the corners of your mouth down. It works more than you think.
The sheet over your neck. It runs from your collarbone up to your jaw.
This one sits below the camera’s map. Here it is on the diagram.
The rope down the side of your neck. It turns your head.
This one sits below the camera’s map. Here it is on the diagram.
The market
Face yoga apps sell the routine. They hand you the exercise, then trust you to do it right — and what your face actually did stays between you and the mirror.
A rudimentary AR coach.
Photo analysis.
Videos.
Live measurement: reps, holds, compensation, symmetry.
None of them can tell you that your forehead is helping.
Each one described the way it describes itself. Nothing here says how well they work — only what they read while you do the exercise.
What it will never do
Three things the app does not do. They were decided before the first screen, and they hold — a face yoga app that scores faces would be working against her method.
01no score
There is no Face Score in the app and there will not be one. The audit leaves a Tension Map: where the jaw holds, how much of the looking the forehead does, how far each side lifts. No golden ratio, no percentile, nothing to beat.
02on this phone
The front camera reads your muscles while you work, and the reading stays in the device. No account, no upload, no server that could be asked for it. Nothing is recorded. Nothing leaves this phone.
03her words
The cues, the corrections and the line at the end are templates in her own sentences, picked by what the camera measured. There is no language model in the prototype, and nothing improvises in her voice.
The prototype has no backend and no login. That is a decision about what the app is for, and it is also why the demo needs nothing but the phone.
10-together
11-close