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Legal notice

Last updated: October 30, 2026

Publisher

The website twinfit.fr and the TwinFIT mobile app are published by:

Credits

Project initiated by Rémi Voisin.

The TwinFIT app (Android and Wear OS), the twinfit.fr website, the detection models, and the exercise catalog and taxonomy were designed and developed by Jesús Sánchez Rodríguez, their author and rights holder. The exercise illustrations and muscle maps were made by Jesús Sánchez Rodríguez with generative artificial intelligence tools.

The models’ training dataset was designed by Jesús Sánchez Rodríguez (protocol and the TwinFIT Lab recording app), and recorded and labeled by Rémi Voisin. It is jointly owned by Jesús Sánchez Rodríguez and Rémi Voisin.

Hosting

twinfit.fr is hosted by Hostinger International Ltd., 61 Lordou Vironos Street, 6023 Larnaca, Cyprus (hostinger.com, gdpr@hostinger.com).

The TwinFIT app’s data (accounts, profiles, workout history, profile photos) is hosted by Nhost (Nhost AB, Sweden) on servers located in the European Union (region eu-central-1, Frankfurt, Germany).

Intellectual property

The source code of the website and the app, the exercise catalog and taxonomy, the exercise illustrations and the muscle maps are the property of Jesús Sánchez Rodríguez, who licenses their use to REVO ENGINEERING. The models’ training dataset is jointly owned by Jesús Sánchez Rodríguez and Rémi Voisin. The TwinFIT name and logo belong to REVO ENGINEERING. Any reproduction, representation or use, in whole or in part, without prior written consent is prohibited.

Google Play and the Google Play logo are trademarks of Google LLC. Wear OS is a trademark of Google LLC.

Personal data

How personal data is processed is described in the privacy policy. The website uses no cookies and no analytics.

Contact

For any question about the website or the app: support@twinfit.fr.