Capture consistent views, review three independent measurements, log shedding in seconds, and keep routine context beside the timeline while every signal stays distinct.
Same room, similar light, guided position.
Your next useful actions, clearly prioritised.
Front, crown and part line · about 40 seconds
The app’s primary surfaces do not compete for attention. Home prioritises the next action, Capture protects comparison quality, and Trends explains history without overstating certainty.
Swipe to explore all three screens.
The next capture and today’s shedding observation come first. Measurements and routine history follow without promotional distractions.
Your next useful actions, clearly prioritised.
Front, crown and part line · about 40 seconds
Front, crown and part line views each receive direct guidance for angle, distance, light and focus before a comparison is saved.
Alignment checks run on this device.
Photo measurements, five region detail, shedding observations and routine context share dates, but never become one blended rating.
Alignment checks run on this device.
Each view has a narrow purpose. HairLens checks one retake reason at a time, gives a direct correction, and keeps incompatible photos out of the visible trend line.
Frames the frontal hairline and both temples against stable facial landmarks.
Guides the phone directly above the head for crown and mid-scalp compatibility.
Adds a repeatable close view that strengthens density and scalp-visibility comparisons.
The capture can update the three relevant measurement histories.
The app says Not comparable and names the correction needed.
HairLens aligns events by date so you can review what happened when. It does not connect routine completion, a product change or one shedding entry to a photo change with causal language.
Density, hairline position and scalp visibility remain equal peers.
Quick observations and 60-second counts stay in separate histories.
Adherence records actions completed, not outcomes produced.
No arrow, no percentage and no positive or negative colour when the change is not distinguishable from normal capture variation.
Routine actions, wash days, styling changes and product notes can sit beside your timeline. They remain neutral markers and never become automatic evidence that something worked.
Record when something entered or left the routine. No effectiveness claim is attached.
Keep editable actions and completion history without joining them to measurement movement.
HairLens never says a completed action caused a visible change.
Capture, storage, outside processing and research are not one blanket permission. Export and deletion remain accessible from the same account area.
Required only to make a guided on-device comparison.
Optional. The core app does not require a raw-photo upload.
A separate choice for features that genuinely need another processor.
Independent opt-in; never bundled with normal app use.
Return to the main site for the broader measurement and privacy explanation, or continue into the detailed supporting pages.
HairLens AI is an on-device personal hair and scalp consistency tracker. It evaluates three independent peer measurements — density, hairline position, and scalp visibility — from a 40-second weekly guided photo capture. Computer vision models execute directly on your smartphone processor, ensuring biometric photographs do not leave your handset by default.
Density, hairline position, and scalp visibility stay separate and equally weighted. They are never summed, averaged, or converted into an overall verdict.
On-device vision anchors facial bone landmarks within ±5° angular tolerance. Captures taken under mismatched angles or lighting are flagged.
Photographs remain on your handset by default. The standard sync request transmits three numeric measurements and zero image files.
Capture, storage, third-party processing, and research permissions are controlled independently in an immutable append-only record.