HairTwinAI-assisted hair app · native, in development

Built to noticechange early.

HairTwin is a native iOS and Android hair-care companion in development. Six guided angles of your own head, a reading in plain words with a range on every number, a plan sized to your answers and your daily time, and Pip between scans. The app says it on screen: not a diagnosis.

Native app · in developmentPip · approved identityReadings are development fixtures

Illustrative · six angles

Prototype · 7 Oct

One head. All six angles.An illustrative head makes the capture positions visible. Use the angle selector, pause, or review all six. This is a demonstration of the flow, not a camera recording or a personal result.

Analysis · latest prototype · not yet acceptedRefreshed from the actual current per-tab source on 8 October: the 7 October design, fixture F1. A design direction approval, not an acceptance; not native.

01What HairTwin is

The same six angles,read the same way,compared on a date.

Hair changes slowly and is hard to judge by eye. HairTwin gives you something repeatable: six guided angles, a reading with a range on every number, a plan sized to the time you have, and a second scan on day 30 that the first one is compared with. In the app's own words: “Not a diagnosis. Built to notice change early.”

In-app and prototype copy · quotedReadings are development fixtures

Guided capture

A guide ring, light, steady and tilt chips, and a shutter that fires by itself when you hold still. Six angles in about two minutes, with Pip counting. Top, crown and back are always spoken, so the angles you cannot see are guided by voice.

A reading with a range

Hairline, temples, crown and density, read from the six photos into findings in plain words. “Every number is an estimate with a range.” In this build the reading is deterministic development output, not measured hair.

A plan sized to your day

“How much time each day? Your plan is sized to this.” Picks depend on your answers, your safety flags and the area the scan watches. Treatment names and copy are design fixtures, not guidance.

Illustrative · guided capture, demonstrated

Six positions on one illustrated head. Each view keeps the same hairline, crown and texture. Native implementation evidence is available in the capture chapter; no person was photographed for this demonstration.

01bThe idea, visualized

One head. Four stages.What a twin is for.

HairTwin's reading places a person on a four-step stage scale and maps ten areas of the head. This is what that vocabulary looks like on one consistent head: the temples opening independently, the front edge softening, the crown showing scalp from above. Pick a stage, or let it run.

Illustrative conceptStage scale and areas · the app's own

Illustrative hair-state visualization on the app's four-step stage scale (Full · Early · Visible · Extensive) — not a clinical prediction, not a measurement, and not a personal result. HairTwin does not forecast future hair loss; a rescan on a date is intended to compare two readings.

02Capture, review, retake, and the reading

Six angles.Two minutes.

Front, left, right, top, crown and back: one head, six clear views. The demonstration shows what each position captures and how the six views come together for review. The native flow asks you to confirm before continuing to the reading.

Capture and review · illustrativeReading and results · native fixtures

Illustrative · guided capture

Six angles. Two minutes. The native scan preparation screen

Illustrative · six-view review

Review before the reading.

Front to back. Every angle visible.

One drawn head · illustrative views, not captured photos

Native · reading

Analysis complete: We understand your hair. 6 of 6 angles read

Latest prototype · Analysis + Plan

Capture · six angles

It counts for you.

“Chin level, eyes on the camera.” “Turn a touch to your right.” “Phone above your head, screen down.” It captures by itself when you are steady, or you tap Capture now. Pip buzzes, counts and says “got it”, and the progress thumbnails fill along the bottom.

The illustrated demonstration explains the positions. Native guide-ring, quality-chip and voice-guidance implementation is recorded in the evidence below.

Review · retake · confirm

“Review before I read them.”

Each angle is graded Not yet, Good, Usable or Retake. Retake returns to that angle; confirmation is required before anything is analysed. “Nothing is read until you continue.”

Illustrated review views make the six positions legible. Native capture evidence and its remaining limitations are kept separately below.

The reading · four phases

Tracing your hairline. Measuring your temples. Mapping your crown. Reading your density.

Four phases on the device, with Pip as the neutral model the marks are drawn on. Then: “6 angles read. Your results are ready, locked until you join.”

Deterministic development output · not measured hair · the traced hairline, temple calipers, crown map and density lattice are not validated inference

Analysis and Plan · latest design

Your weakest area, with a range and a confidence in words.

The latest per-tab design puts the stage, areas and next scan in Analysis, then gives each plan pick its own page. Complete content is available below, with natural vertical inspection and no clipped lower sections.

Latest 7 October per-tab prototype · fixture content · final acceptance and native integration remain open

03Analysis · latest prototype · 7 October 2026

Your stage. Your areas.Your next scan.

The results preview uses three tap-only tabs, Analysis, Plan and Twin, each with inner pages you swipe or tap through, and natural vertical scroll. Analysis has three pages: where your pattern sits, where exactly it is thinning, and what day 30 will compare. The 6 October approved direction, rendered as a browser prototype on 7 October: a design direction approval, not an acceptance, and not yet native.

Latest prototype · 7 Oct 2026 · not yet acceptedFixture F1 · not native

Prototype · fixture F1

**1 · Stage**“Your stage.” The prototype's own motion · tap for the full scroll

Analysis page 2, Areas: Your crown reads thinnest — **2 · Areas**“Your crown reads thinnest.” · tap for the full scroll

Analysis page 3, Next scan: Day 30 shows if it's moving — **3 · Next scan**“Day 30 shows if it's moving.” · tap for the full scroll

Scroll inside a still screen or open the complete page. Inspection captures come from the actual latest per-tab source; developer fold marks and the floating inspection overlay are omitted so the content stays readable.

01Stage

Four steps, one of them yours.

Full, Early, Visible, Extensive, drawn as top-down dot maps. The scale is picked from your own answer; your exact position stays locked until you unlock. A fact strip counts what was found: thinnest of ten areas, fourteen findings across three pages. The page ends: “Early estimate from one scan, not a diagnosis.”

02Areas

A ten-area map, with Pip touching the zone.

Your head from above, left versus right in three pairs; a side reads thinner only when the band clears zero. “You noticed your crown first. The scan agrees.” Values stay locked; the shape of the finding does not.

03Next scan

A rail from today to day 30.

We found your pattern, we watch your crown, we compare it again. “Same 6 angles. Same light. Side by side.” The prototype's own rationale: one scan cannot measure speed, so HairTwin promises the comparison and dates it.

Analysis, not Analytics: the product names the tab Analysis and its pages Stage, Areas and Next scan · longer-term progress views exist as approved V5/V6 scope, in the roadmap below · fixture dates such as Oct 6 and Nov 5 are prototype chronology

04Plan · latest prototype · 7 October 2026

Your plan, thenone page per pick.

Five pages for the primary fixture: your plan, then a page for each of the three picks, then everything else that was considered. Each pick carries how to use it, what to expect, when you could see it, and a safety line. In Serious Mode the plan is one page: “See a dermatologist first.”

Latest prototype · 7 Oct 2026 · not yet acceptedTreatment copy is fixture · generic product art

Prototype · fixture F1

**1 · Your plan**“For your crown.” Three picks of fourteen checked, under ten minutes a day, a dashed day-30 rescan marker. Keep and Regrow stay locked. “Your plan vs doing nothing · Not a promise.”

Plan page 2, Minoxidil 5% foam — **2 · Foam**Minoxidil 5% foam. “Start here · tonight.” Improvement, first signs, use and evidence are locked. “Not on an irritated scalp. Not under 18. Early shedding can happen.”

Plan page 3, Microneedling roller — **3 · Roller**Microneedling roller. “With your foam.” Evidence: moderate. “Never on an irritated scalp. Clean it after each use.”

Plan page 4, Ketoconazole 2% shampoo — **4 · Shampoo**Ketoconazole 2% shampoo. “Wash-day helper.” “Strong for the scalp · Limited for hair.” “Can dry the hair. Rinse well.”

Plan page 5, More options: Also considered for you — **5 · More**“Also considered for you.” Finasteride: “Left out · you said no.” Laser cap: “Evidence: in review.” Hair fibres: “Cosmetic, instant. No effect on growth.” “All 14 we checked · 3 in your plan.”

What every pick page carries

Why HairTwin picked it, in your words: the reason comes from your own answers and the region the scan watches.
Expected improvement and first signs, locked until you unlock. “When you could see it · Not a promise.”
How to use and what to expect, then the safety line, which is never locked.
Pages change with the fixture. F2 adds a lab-test page, F3 a finasteride page; F5, Serious Mode, has one page.

What the fixture is, and is not

Fixture F1 is a man of 31 watching his crown. Treatment names and copy are design fixtures, not recommendations or clinical guidance; pack shots are generic product art. The prototype quotes “14 checked”; the development evidence base behind it holds 9, and the two must match before this ships. People tests are still owed, and the medical wording and scale names need owner or legal review.

Prototype specifications, 7 October 2026 · open risks recorded in the spec · not accepted · not native

Prototype · Twin

Native membership screen: See your full hair analysis, example prices, no payment is taken

03–04Twin and the paywall · “One unlock opens all three”

“Pip is waiting for your hair.”

Made from six details: hairline, temples, crown and density are locked; colour is the one you gave; style reads “You choose it when you join.” A rail explains how the twin is made: Scan · Measure · Make, when you join. “Your photos stay on this phone until you say yes.” Nothing on the Twin page is inferred from how the person presents.

The paywall is explicit on screen. The native membership screen reads “Example prices in this build. No payment is taken.”, and the source notes that no price is decided. The prototype's paywall uses sample pricing and has no purchase. The real personal twin is inactive until the design is explicitly approved; the twin shown after joining is a design fixture.

Latest prototype · sample pricing · no purchaseNative paywall · example prices · no paymentTwin generation · inactive until approved

The prototype's Twin motion scrolls through the page and its paywall preview · the native screen is a scan fixture · “Matched from your scan” copy inside the app is preserved source copy, not a claim of live generation

05Journey and Pip · implemented natively

One mission a day.Behaviour, never biology.

The Journey runs day N of 30 toward the first comparable rescan: a baseline mirror, seven steady days, a shed check on day 14, the rescan goal. One mission a day, and Pip reacts when it is done. Points count steady days and nothing else: “Points track steady days. What they unlock is still being decided.”

Implemented natively · demo baselineProvisional points v0Pip · approved identity

Native · Journey

Missions · one a day

“Step done. That's behaviour, not biology.”

The mission sheet opens, the step is checked, the day completes, and Pip celebrates one steady day and ten points. A missed day resets nothing.

Native Journey recording · demo baseline · real taps · no customer history · Day 15 is fixture chronology

Points · provisional rule v0

Ten per steady day, five more every seventh.

A provisional rule, dated 28 September 2026 in the source. “Points measure behaviour, never biology. They are not Generation Credits and unlock nothing yet.” The “Seven steady days” sheet exists; no seven-day achievement is claimed.

Pip · the companion · approved identity

“Meet your hair twin. It can take on any hair. One scan, and it takes on yours.”

The Hello screen plays Pip's original film: the twin before it has anyone's hair, a demonstration that it can take on any hair, never the person's own. Tap Pip and the film replays. The approved identity is a cream fleece plush twin, hood and ears, dark expressive eyes, restrained blush. The live Pip is made of whole renders with the hair already in them, a face that blinks and looks, and a body that breathes, so Pip is never frozen.

“Pip speaks in the first person; the interface speaks plainly. No joke targets the person or their hair.” The V6 rules it is written to: no fake biology, no anxiety loops, Pip never roasts the user, Serious overrides everything, nothing shared by default.

Approved identity · original film · character media is the project's existing generated asset workflow, not drawn by Claude · V6 rules are approved scope copy

Native · Hello

Pip, the approved neutral identity master: a cream plush twin

Rig poses · components, not mascotsSix of the fourteen deliberately faceless rig poses behind the live Pip. The face blinks and looks on top of them in the app; they are never shown alone as finished characters.

06Why we build it

“Hair is a long game. Meet the twin who plays it with you.”

V5/V6 approved scope copy · the product's own line, not a studio promise

“Not a diagnosis. Built to notice change early.”Native app · onboarding copy
“One scan can't measure speed. Two scans can.”Analysis prototype · Next scan
“I read the list on the back, not the promises on the front.”Pip · V5/V6 scope copy
“The joke is always Pip and you against bad information. Never Pip against you.”V5/V6 scope copy

Studio statement · owner to confirm

Hair changes slowly, it is hard to judge by eye, and the advice around it is loud. We are building a way to look at the same six angles the same way, on a date, with the limits written on the screen, a plan sized to the time a person actually has, and a companion that makes the waiting bearable.

The rules came before the features. Every number carries a range. Safety guidance is never locked behind payment. Progress moves only when a rescan moves it; there is no daily percentage. And the companion is on your side.

No product mission document exists yet; this statement is the studio's reading of the app's own lines and is published only once the owner confirms it

06bThe HairTwin we're building toward

More than six photos.A hair companion.

Guided capture → analysis → visualization → a personal plan → product intelligence → professional options → long-term progress. The first steps run natively today on fixtures; the rest is approved V5/V6 design scope, described here as future concepts. Nothing below is live, scheduled or a medical promise.

Native today · fixturesApproved V5/V6 scope · design intent · not builtIllustrative

AProduct intelligence · planned

Point the camera at a bottle. Read the label with it.

The intended experience: scan a product or its packaging, let HairTwin identify it where it can, read the ingredient list, check an ambitious claim against the evidence it holds, and say plainly how the product relates to your own goals and hair. The approved scope designs it as the Lab's “Label detective”: sixteen screens, none built yet. Any score it shows would be transparent about its basis; no growth figure is promised.

01 · ScanA product in your hand.

Point at the label or ingredients.

Future concept · not an app screen

02 · ReadA readable ingredient list.

Retake or complete a partial label.

Future concept · not an app screen

03 · IdentifyUnderstand the formulation.

Match only where the product is known.

Future concept · not an app screen

04 · CheckPut a claim in context.

Explain the evidence and its limits.

Future concept · not an app screen

05 · UnderstandRelate it to your goals.

A verdict in words, with its basis visible.

Future concept · not an app screen

Approved V5 scope, Lab · Products: product scan, 3-step capture, partial-label OCR, score, compare, verdict, claim check, shelf · “full native product scanner unimplemented” · these are concept explanations, not working product-scanner screens

BTransplant clinics · future cooperation

When a clinician should look, and what to bring them.

A longer-term goal is to connect people with suitable professional hair-restoration services, including transplant clinics: understanding the options, knowing when a consultation is appropriate, exploring scenarios, and, through future authorized partnerships, discovering and comparing qualified clinics. No clinic partnership exists today and none is implied; the app already says safety comes first and that a clinician takes the first look when the answers call for it.

02 · OptionsExplore the right questions.

Transplant options require a clinician’s judgment.

Future concept · not an app screen

03 · ConsultationBring a clear hair history.

A future Hair Passport and authorized clinic cooperation.

Future concept · not an app screen

04 · Follow-upKeep the long view.

Comparable records before and after professional care.

Future concept · not an app screen

Approved V5 scope, Pro: relevance, donor scan, readiness, allocation, hairline designer, simulator, healing journey, Hair Passport, quiet review · “advanced native simulator/donor planning unimplemented” · no partnerships, no clinic names, no outcomes promised

CPip's hair states · design concept

A companion that wears your pattern.

The approved character system already sketches a person's answers onto Pip before the scan: a crown pattern, an all-over pattern, on the same pose. The long-term intent is a full set of states so Pip can carry a person's hairline and crown through the journey. The detailed stage anatomy lives on the twin above; Pip stays the companion. A design concept, not a personal forecast.

Approved character · three states, one pose

Pip with the crown pattern pre-scan sketch

Pip with the all-over pattern pre-scan sketch

The cream plush Pip the owner approved, with its original film. Every state keeps this head, these proportions and this pose.

Pre-scan sketches: “Pip sketches the person's answers before the scan, as a preview, never as a result.” (Claude Code, 30 September 2026) · the full stage set is design intent · nothing here is a validated forecast The hair-state visualization, above →

07Roadmap · now, next, vision · no dates

Now, next,and the longer view.

Three lanes, no dates. What runs natively today on development fixtures; what is approved as a direction and still to be accepted and built; and what the product's own scope documents describe as intent. Open any item for its exact status.

Implemented natively · fixturesApproved direction · in designApproved V5/V6 scope · intent

NowImplemented · dev fixtures

Onboarding, safety, goals, consent, guided path

Hello, presentation, pattern and colour, five safety questions, up to three of four goals, and consent with both switches off by default. A guided questionnaire path exists; its result reads “Typical, not yours yet.” and does not replace the six-angle capture.

Native · exercised in an isolated development build

Capture, review, retake

Guide ring, chips, automatic shutter, helper mode, per-angle grades and retake. Synthetic camera in the recordings; the on-device quality grading is not validated against a real camera.

Native · synthetic camera · black emulated thumbnails

Reading and results

Four phases, a results screen with a range and a confidence in words, and region-by-region detail.

Native · deterministic development output

Locked preview, first plan, treatment pages

The October 2–3 single-page locked results, a first plan with “If nothing changes” and “With this plan” lines, and treatment pages with evidence, safety and alternatives. “Add to my plan” answers “Not in this build yet.”

Native · under revision by the paged design

Journey, missions, provisional points

Daily step, mission sheet, celebration, points explanation and the seven-steady-days sheet. Points unlock nothing yet.

Native · provisional rule v0

NextApproved direction · in design

The paged Analysis, Plan and Twin

Tap-only top tabs, inner pages, natural vertical scroll: the direction approved on 6 October, rendered as per-tab finals on 7 October. “Design direction approval, not acceptance.” Final acceptance and native implementation are the open steps.

Owner direction · “DESIGN PHASE ONLY.”

Personal Hair Twin generation

Inactive until the design is explicitly approved. The post-payment twin shown today is a design fixture.

Inactive by owner rule

Later builds, already named in the app

The day-14 shed check, “It opens in a later build.” Adding a treatment to the plan, “Not in this build yet.” What points unlock, “still being decided.”

In-app markers

Before shipping

The evidence base behind “14 checked” holds 9 and must match. People tests are still owed. Medical wording and clinical scale names need owner or legal review.

Prototype open risks

VisionApproved V5/V6 scope · intent

“Product/design backlog; not 186 native routes.”

Long-term progress

Region by region, Mirror Match, a photo diary, then and now, a response curve, a responder profile. The comparison system is not proven.

Scope · superseded visuals

Product intelligence: scan, read, check

Scan a product with the camera, read a partial label, identify it where known, check a claim, compare, optimise a shelf; lab reports and experiments. Sixteen approved screens; the current Lab shelf is empty and no native scanner exists.

Scope · unimplemented natively

Futures and cosmetic

A Hair Time Machine labelled an AI visual estimate, four futures, a haircut simulator. No working simulator is claimed.

Scope

Professional options and, later, partnerships

Relevance, donor scan, readiness, allocation, hairline designer, healing journey, a Hair Passport: twelve designed screens, advanced native planning unimplemented. Clinic discovery and consultation requests would depend on future authorized partnerships; none exists.

Scope

Companion and weekly story

Ask Pip, a library, a weekly check-in, perfect weeks and meaningful unlocks, comeback flows, Serious mode across the app.

Scope · V6 copy English only

The roadmap is based on the original V5/V6 feature scope. Its retired screen designs are not shown as the current app. Product scanning, clinic cooperation and advanced simulation remain future work.

08The development story

Weeks of decisions,dated.

Characters were retired, a premium gate was built and set aside, a light direction was approved, a paged architecture replaced single pages, native screens were captured and criticised, and the handoff was re-collected when it fell short. The owner writes the instruction; Claude Code acts in the product source, and the action is recorded with its result and its hash.

Approved directionLatest prototype · not acceptedNative · captured

Owner record · 28 September 2026

“Move the approved visual/motion system into the REAL HairTwin React Native app.”

Claude Code

Wrote LivePip.tsx and HelloScreen.tsx in the native app. The live Pip contract: whole renders with the hair already in them, a face that blinks and looks, a body that breathes.

Owner record · 30 September 2026

“The user should feel this is the same evolving character they selected, not a reset to a random generic Pip.”

Claude Code

Wrote prescan-pure.ts and prescan.ts. Pip sketches the person's answers before the scan, one of four patterns in one of seven colours, marked PREVIEW, never a measured result.

Owner feedback · 1 October 2026

“Make the first transformation begin sooner.”

Claude Code

Installed the new film atomically and updated the Hello timing. PRE_ROLL_MS = 150 and BUBBLE_AT_MS = 330 are in the source; the installed film's hash matches the original. The same day: “Do not make the montage frantic.”

Owner records carry SHA-256 digests · commits 16a9e2b, d31fad2 and d142318 carry Claude co-author trailers · Claude is credited for integration and timing, never for Pip's pixels · development assistance, not a runtime; no product calls the Claude API · the previous company website, its films and this transfer were made with Codex

Next product: Frame →Building with Claude →

Implemented natively · fixturesLatest prototype · 7 Oct · not acceptedApproved identity or directionApproved V5/V6 scope · intentStudio statement · owner to confirm