The AI weight-loss investigator you talk to

Why won'tthe weight move?

You've eaten clean, trained, maybe even started a treatment — and the scale barely budges. What works for me logs your whole life by voice and connects hundreds of signals against medical science and your own history, until the real reason finally shows up.

Invitation only · we review every application · no spam, ever.
Application received. We'll be in touch about Cohort 0.
Pattern foundThe scale stalls on weeks with late-night sugar and under 6h of sleep.
Every signal, one placeWeight, meals, sleep, stress, your treatment days.
9:41
Today
Monday · Morning check-in
Good morning ☀️ How did the cravings go yesterday?
0:13
"Rough — caved on sugar after dinner, slept badly." Logged 👇
Logged just now
Sugar craving · evening Injection · day 3 Sleep 5h40 · synced Weight 78.4kg · synced
+ 300 more signals synced from your apps today
Tap to talk…
Cohort 0 · now recruiting

On Mounjaro — and the weight stopped moving?

You started the injections. The first months worked. Then it stalled — and the hunger and cravings crept back, sugar most of all. You're not doing it wrong.

Cohort 0 is our founding study: people on Mounjaro 15 mg whose weight has plateaued, with no real drop in appetite. Together — with the same tool, around the same question — we investigate why your body is holding on, and run the leads that actually shift it.

Mounjaro® is a registered trademark of Eli Lilly and Company. What works for me is an independent tool and is not affiliated with, endorsed by, or sponsored by Eli Lilly. This is not medical advice, provides no diagnosis, and is not a guarantee of weight loss.

The founding cohort

Cohort 0

  • On Mounjaro 15 mg, with weight loss plateaued
  • Hunger & cravings have crept back — sugar especially
  • One shared question, investigated together
  • Limited places · applicants reviewed
Free for the founding cohort — first 2 months free thereafter
Apply to Cohort 0
Sound familiar?

You're doing everything. The weight isn't listening.

·Why has the scale stalled?
·Why am I always craving sugar?
·Why does it pile back on the moment I stop?
·Why does it work for everyone but me?

The diet "worked" for a while, then stopped. The tests come back "normal." But the weight won't move — and the reason is rarely one thing. It's hundreds of small things lining up: sleep, stress and cortisol, meal timing, dairy, your gut, your treatment — that no one ever had the time, or the data, to connect. Until now.

How it works

From "I'm stuck" to "here's why."

Three steps. No forms, no calorie spreadsheets, no willpower required.

01

Talk

Just speak — what you ate, the craving that hit at 11pm, your weight, your sleep, your stress, your injection day. Snap a photo of a meal or a lab result. It even hears it in your voice when something's off.

02

Connect

Link the apps you already use — your scale (Renpho & co.), Health, steps, sleep, weather, calendar, cycle. It pulls in hundreds of signals a day and structures them cleanly, in any language.

03

Understand

It weighs everything at once against medical research and your own past, surfacing the multi-factor reasons your weight is stuck — and never invents an answer it can't trace to a source.

One tool, every signal

Feed it anything. It makes sense of all of it.

Most weight apps count calories and stop there. What works for me takes in hundreds of signals from every corner of your life — and turns the mess into clean, comparable data no human could hold in their head.

Your voice

Dictate meals, cravings, mood, a bad night, your injection. Prefer typing? That works too.

Your tone, read

It hears how you say it — stress drives cortisol, and cortisol drives fat storage. "You sound tense today — anything to note?"

The apps you already use

Your smart scale (like Renpho), steps, sleep trackers, weather, your calendar (that late dinner, that brutal week), menstrual cycle, and any health app.

A photo is enough

Snap a meal, the scale, a lab report or your treatment pen — it reads the numbers and logs them for you.

Any document, any language

Blood panels, prescriptions, scans — as image, audio, data feed or text. Structured cleanly, whatever the language.

The mind–body link

Stress, cortisol, broken sleep, emotional eating — it knows your mood moves your body chemistry and your appetite, and tracks it.

A doctor sees you 15 minutes a year. What works for me reads hundreds of signals every single day — and never forgets one.

Inside the app

See why the weight is stuck. Finally.

An early look at What works for me.

Conversation

It listens — and learns what to ask.

Speak freely: a meal, a craving, a sleepless night, your injection day. It even picks up when your voice sounds tense and checks in — then files every detail as clean data, and follows up on what you forgot to mention.

9:41
Today
Evening check-in
Yesterday you skipped dinner after a long day. Did the late-night craving hit again?
0:16
"Yeah — biscuits at 11, then slept badly." Noted 👇 — I'll watch how skipped meals track the sugar pull.
Captured
Sugar · late-nightDinner · skippedSleep 5h · syncedStress · high
+ tone analysis · 200+ signals merged from your sources
Tap to talk…
Insights & correlations

Why the scale won't move — with the evidence.

Ask it to dig, or explore the correlations yourself. When hundreds of small signals line up, you'll see what's really stalling your loss — every factor weighed at once and ranked by how strongly it explains the plateau.

9:41
Insights
3 new leads this week
Pattern found300+ signals
Your weight stalls on weeks with late sugar — and short sleep.
Sugar after 9pm83%
Sleep under 6h71%
High-stress days · calendar58%
82% confidence · explains 9 of 11 stalled weeks · 9 sources
Possible lead
Cravings spike the day after a skipped dinner.
Skipped dinnerShort sleepSugar craving +1 dayInjection day 3
Combined signalr = 0.78
Daily timeline

Every day, on the record.

A living journal of your body — searchable and connected, pulling spoken notes and synced data into one thread: weight, meals, injection days, sleep. Scroll back through weeks and months; nothing you noticed ever gets lost again.

9:41
Journal
This week
Today · Mon
Sugar · lateInjection · day 3Sleep 5h4078.4 kg
Sun
Sleep 7h 20m9,100 stepsNo sugar
Sat
BloatingDairy · dinnerCycle · day 24
Fri
Energy · high78.1 kg
Trends dashboard

Watch the factors line up.

Weight, sleep, sugar, stress, cycle and your treatment — tracked over time so the connections become impossible to miss. The big picture of why you're stuck, drawn from every source at once.

9:41
Trends
Last 14 days
300+
Signals / day
−0.3kg
14-day change
Sugar
Top factor
Weight × late sugar
The scale stalls on high-sugar weeks
Stalled weightLate sugar
The program

An app you keep. A study you can join.

The app is yours, free: a private journal that investigates your own body. The program is optional — join a cohort and investigate one question alongside people living the exact same thing.

01

Everyone logs

Each member talks to the app daily. Voice, photos and connected apps become clean, comparable data — hundreds of signals each, around one shared question.

02

The app finds a lead

It compares correlations across the whole cohort. When a pattern emerges — say, dairy after 5pm wrecking deep sleep — it proposes a test the group can actually run.

03

The cohort tests it

Everyone is invited to run the same test the next day — take lactose at 6pm, say. Accept or decline; it's always your call. Results feed a shared knowledge base, and update your private profile note — a gold mine that grows every day.

What we offer is an investigation into your own body — not a promise that you'll lose weight. The app finds correlations and proposes tests; it never diagnoses, and never invents an answer it can't trace to a source.

The app
Free

Download on iOS or Android, talk to it daily, and get your own insights. Invitation only at launch.

iOS & Android
Join a cohort
€200 / month

Investigate one issue with a focused group. Group calls and the data work are run by our research partner. First 2 months free.

2 months free
Cohort 0
Free for now

Our founding Mounjaro cohort is free while it proves itself. From Cohort 1 onward, the program is paid.

Founding cohort
Why it's different

Built to actually find answers.

Voice-first

Logging that takes seconds, not discipline. Just talk — the app does the rest.

Grounded, and honest

Every signal is checked against real medical knowledge — and it cites its sources. It never invents an answer it can't back up.

Hundreds of signals at once

It weighs hundreds of signals together — connections no single test, and no 15-minute visit, can see.

Private by design

Your data is encrypted, yours alone, and never sold. This is your story to keep.

Security & compliance

Your health data, under lock and law.

Health data is the most sensitive data there is — a "special category" under the GDPR (Art. 9). We treat it that way: built for strict compliance with European and French law, by design, and engineered to go further than the law requires.

Shared in a cohort — anonymised by design

When you join a cohort, only de-identified signals ever enter the shared pool — never your name, your voice, or your raw journal. The pool sees patterns, not people. Your private profile note stays yours alone.

PseudonymisationGDPR Art. 9Art. 25

Collection — minimised & consented

We collect only what a finding actually needs, and pseudonymise it the moment it arrives. Analysis runs on de-identified data — and only ever with your explicit, opt-in consent, which you can withdraw at any time.

Art. 5(1)(c)Art. 7

Storage — you decide how long

Your entries are kept for you to use, then — after three years — we tell you a month ahead and let you keep or delete them. Or opt in, once, to keep everything for as long as you want it.

GDPR Art. 5(1)(e)Storage limitation

Transmission & keys — encrypted, separated

Every byte moves over TLS 1.3 and rests under AES-256-GCM, with per-user keys held apart from the data they protect and rotated on a schedule — exactly the technical measures the law names for securing processing.

GDPR Art. 32TLS 1.3AES-256

Where it lives — certified EU data centres

Your data stays in the EU, on infrastructure built to the HDS standard (Hébergeur de Données de Santé) required for hosting French health data — an ISO 27001-based framework overseen by the Agence du Numérique en Santé.

Code de la santé publique L.1111-8HDSISO 27001

Your rights — always yours

Access, correct, export in a portable format (any date range, your physical, psychological and context data), or erase everything — one tap, honoured without undue delay. And we run a Data Protection Impact Assessment before we ever launch.

GDPR Art. 15–20Art. 17Art. 35

Built to comply with the GDPR (Regulation (EU) 2016/679) and France's Loi Informatique et Libertés — and to go further. Your data is never sold, never used to train anyone else's AI, and never shared without your explicit say-so. Privacy isn't a setting here — it's the architecture.

Apply to Cohort 0.

On Mounjaro and stalled? Join the founding cohort and help find what actually moves the scale. Limited places — we review every application.

Free for the founding cohort · no spam · unsubscribe anytime.
Application received. We'll be in touch about Cohort 0.