Privacy Policy

Your tracking — progress photos, weight, measurements, goals, reminders — is stored only in a local database (SQLite) on your device, protected by your operating system’s encryption. This data is never sent to our servers, never backed up to a cloud on our initiative, and never accessible to the publisher.

The app requires no account and works entirely offline, with the sole exception of the premium “Visual Check-in” feature described in section 03.

• Progress photos you take or import.
• Weight and measurements you enter.
• Goals, milestones and reminder settings.
• Results of the visual check-ins you generate (see section 03).

You stay in full control: every photo, measurement or check-in can be deleted at any time from within the app. Uninstalling the app erases all of this data from the device.

“Visual Check-in” is an optional premium feature that analyzes a photo using artificial intelligence to estimate your body composition (expressed as a range) and describe your posture. It involves processing a photo of your body — sensitive data within the meaning of Article 9 of the GDPR. Accordingly:

• The photo is sent only when you explicitly tap “Analyze.” Nothing is automatic.
• The photo’s location data and metadata are stripped before it is sent.
• The photo travels over an encrypted connection to our relay server, which forwards it to our AI provider (Google Cloud — Vertex AI) to generate the analysis.
• Our server does not keep your photo. The result of the analysis is returned and stored only on your device.
• Your photo is never used to train an AI model.
• The analysis does not identify you and creates no biometric identifier: it only estimates a composition and a posture.

This feature is reserved for people aged 18 and over and requires your explicit consent, collected in the app before any use. This consent can be withdrawn at any time in the settings.

Retention at the AI provider. For its own security and abuse-prevention purposes, our AI provider may retain the transmitted photo for a limited period before deletion. The exact duration and processing region are stated in the app at the time of consent.

Important: “Visual Check-in” is not a medical device, makes no diagnosis, and is no substitute for a healthcare professional’s advice. Estimates are visual and approximate.

Body Tracker includes no advertising tracker and no profiling tool, and sells no data. We do not build an advertising profile from your usage.

• Local tracking: since no data is transmitted to the publisher, there is no processing by us for this part.
• Visual Check-in: your explicit consent (GDPR Art. 6(1)(a) and Art. 9(2)(a)), collected before each activation and revocable at any time.

Under the GDPR, you have the right of access, rectification, erasure, restriction, portability and objection. For tracking data, these rights are exercised directly in the app (viewing and deletion). For any other request, write to us at [email protected]. You may also lodge a complaint with the French data protection authority, the CNIL (www.cnil.fr).

This policy may evolve alongside the app. Any substantial change will be flagged to you in the app, and the last-updated date shown at the top of this page will be refreshed.