Face Symmetry Test: Midline

Midline is a face symmetry test that gives you the same result in the same light, every time. Your front camera maps 468 points on your face, Midline takes out any head tilt in 3D and turns your facial symmetry into a clear score from 0 to 100.

SAME LIGHT, SAME RESULT
Many symmetry apps show a different number on every try. Midline does not judge one random snapshot. It collects 24 good frames and uses the middle value, and it shows how much they varied (for example ±0.4), so you know how reliable your score is. A slightly turned head does not change the result, because the tilt is removed in 3D. The score is simple: 100 minus 12 points for every millimeter of average deviation.

LIVE GUIDANCE WHILE YOU MEASURE
Midline tells you what to fix: look straight ahead, come a little closer, the light is coming from one side, only one face in the picture please. Measuring only runs while your posture and light are right, so a bad frame never ends up in your result.

SIX REGIONS IN PLAIN WORDS
Eyebrows, eyes, nose, cheeks, mouth, and jaw and chin each get their own score, free of charge. You see exactly where your face symmetry is strong and where the two sides differ. Pro adds the millimeter detail with the side, such as "Left eyebrow sits 1.6 mm higher" (8 measurements).

MIRROR FACES
See your face built from two right halves or from two left halves. Switch between the mirror view and the way other people see you. Mirror faces are part of Pro.

SHARE YOUR RESULT
Make a result card with your photo, or without a photo, then it shows the drawn measuring grid instead.

WEEKLY CHECK-IN
Pick a day and Midline reminds you once a week to measure again in the same light at the same spot. If you measured recently, the reminder stays quiet.

FREE AND PRO
Free: unlimited measuring, the overall score, the six region scores, your own aligned face with the midline, a result card to share and your last 3 measurements in the history.

MIDLINE PRO
Pro unlocks the millimeter detail for every region with the side (8 measurements), mirror faces (the left or right half doubled), the complete history with trend curve, the before and after comparison and CSV export.

GOOD TO KNOW
Midline measures facial symmetry, not beauty. It gives no attractiveness rating, and small differences between the two halves of a face are completely normal. Midline is not a medical device and does not provide a diagnosis.
Privacy: everything is calculated on your phone, your photos never leave the device and there is no account. Midline only uses the live front camera, so no photos can be imported.
Subscription: monthly or yearly. Cancel any time in Google Play.

Recent changes:
Midline Pro: steadier connection to Google Play. Prices reload by themselves after a bad connection, a clear "Try again" button replaces the endless loading note, and "Restore purchase" now tells you what it found.