LEAN Privacy Policy

Last updated: 11 August 2026

LEAN estimates body composition from photographs and helps you track training, food and daily activity. Because that involves photographs of your body and information about your health, this policy explains exactly what is collected, where it goes, how long it is kept, and how to get rid of it.

LEAN is operated by Mads Media, Denmark (CVR 46062299), which is the data controller for the personal data described here. Contact: [email protected].

The short version

Your scan photos are uploaded, analysed, and deleted within minutes. They are never stored long-term and never used to train any AI model.
The numbers from your scan — body fat estimate, region scores, measurements — are kept so you can see progress over time.
We do not sell your data, share it with advertisers, or use it for advertising.
You can delete your account and all associated data from inside the app at any time.

What LEAN collects

Data	Why
Scan photographs (four poses)	To estimate body composition. Uploaded, analysed, then deleted.
Body and health information — height, weight, age, sex, body fat estimate, region scores, measurements, goals	To produce your results and track change over time.
Food logs — meals, calories, macronutrients	To show your daily intake against your targets.
Training logs — workouts, exercises, sets, weights, personal records	To track training and progression.
Step count, read from Apple Health with your permission	To show daily activity. LEAN only reads steps and never writes anything to Apple Health.
Account identifiers — an anonymous user ID, or your email and name if you sign in with Apple or Google	To keep your data attached to you across sessions and devices.
Subscription status	To know whether you have access. Payment card details never reach LEAN — Apple handles payment.
Coach conversations	To answer your questions and give the coach context about your training.

LEAN does not collect your location, contacts, browsing activity, or advertising identifiers.

What happens to your scan photos

This is the part most people care about, so here it is in full.

You take four photographs in the app.
They are uploaded over an encrypted connection to storage hosted by Supabase, where they are readable only by your own account.
A short-lived link to each image is passed to Anthropic, whose model analyses the images and returns numeric estimates.
The images are deleted immediately after analysis completes. A scheduled job runs every 15 minutes and removes any image that was somehow left behind — for instance if the app crashed mid-scan.