Terms of Use

Article 1 · Purpose and scope

These Terms of Use (the "Terms") govern the use of the Cyclezen mobile application (the "Application") published by the company Cyclezen SAS("Cyclezen", "we").

The Application is a digital self-observation tool for women who wish to follow their menstrual cycle, their physical and emotional symptoms and their hormonal well-being indicators (the "Users").

The Terms apply to any use of the Application, whether free or paid, during the closed beta phase as well as in the public version. In the event of a conflict between the Terms and the Privacy Policy, the Privacy Policy prevails on matters relating to the processing of personal data.

Article 2 · Publisher identity

Cyclezen SAS
Registered office: 1010 avenue de l'Europe, 33260 La Teste de Buch
SIRET: 94289626700013
Represented by: Samia Dahmouni, President
General email: contact@cyclezen.ai
DPO: dpo@cyclezen.ai
Website: cyclezen.ai

Article 3 · Acceptance of the Terms

Use of the Application is subject to prior, express and unreserved acceptance of these Terms. Acceptance takes the form of creating an account and ticking the dedicated box on the sign-up screen.

By creating an account, the User acknowledges having read, understood and accepted the Terms and the Privacy Policy in full. The Terms can be consulted at any time from the Application ("Settings → Legal documents") and at cyclezen.ai/cgu.

Article 4 · Access to the Application

4.1 Age requirements

The Application is available:

• to persons aged 18 and over without any particular condition;
• to minors aged 15 to 17 with the consent of a holder of parental authority, in accordance with Article 8 of the GDPR and Article 7-1 of French Act No. 78-17 of 6 January 1978, as amended.

The Application is not available to minors under 15.

4.2 Closed beta phase (from 28 October 2026)

During the closed beta phase, access is strictly reserved for Users selected by Cyclezen who have signed a separate confidentiality agreement and have a login provided by Cyclezen.

4.3 Technical requirements

The Application requires a recent iOS device and an active internet connection. Cyclezen does not guarantee compatibility with jailbroken or modified devices.

4.4 Account creation

Access to the features requires creating an account with:

• a valid email address;
• a password meeting the security requirements (at least 12 characters, including at least one capital letter and one digit);
• a first name.

The User undertakes to provide accurate information and to keep it up to date. She is solely responsible for the confidentiality of her login details.

Article 5 · Nature of the Application: important notice

Cyclezen is a self-observation tool. It is not a medical device within the meaning of Regulation (EU) 2017/745 on medical devices ("MDR"), nor an in vitro diagnostic medical device within the meaning of Regulation (EU) 2017/746 ("IVDR").

The Application:

• provides no medical diagnosis;
• prescribes no treatment;
• provides no personalised medical advice;
• is in no way a substitute for a consultation, an examination or the opinion of a qualified healthcare professional.

The educational content available through the Application (articles, explanations about the cycle, endometriosis, PCOS, perimenopause) is provided for purely informational and general purposes.

The User is encouraged to consult a healthcare professional for any question relating to her health, in particular in the event of persistent pain, abnormal bleeding or unusual symptoms; before any decision relating to her contraception or hormonal therapy; and where endometriosis, PCOS, perimenopause or any other condition is suspected.

The cycle, fertility window or ovulation estimates offered by the Application are probabilistic estimates based on the data entered by the User. They must never be used as a method of contraception or as a method of assisted reproduction.

Article 6 · Use of the Application

6.1 Personal and non-commercial use

The Application is intended for strictly personal, non-professional and non-commercial use.

6.2 Prohibited conduct

The User refrains in particular from:

• using the Application for unlawful or fraudulent purposes, or purposes contrary to public order;
• attempting to access the data of other Users without authorisation;
• compromising the integrity, security or availability of the Application;
• circumventing technical security measures;
• reproducing, copying, distributing, selling or decompiling all or part of the Application except as permitted by law;
• using the Application to train external artificial intelligence models without Cyclezen's written consent;
• transmitting through the Application any content that is unlawful, defamatory or infringes the rights of third parties.

6.3 Responsible disclosure

Any security vulnerability must be reported to security@cyclezen.ai. Cyclezen undertakes to acknowledge receipt within 5 business days and not to take legal action against security researchers acting in good faith under the policy published at cyclezen.ai/security.

Article 7 · Personal data and health data

The Application processes personal data and health data within the meaning of Article 9 of the GDPR. The processing of this data requires your explicit, freely given, specific, informed and unambiguous consent.

The terms of collection, processing, retention and securing of your data are described in detail in the Privacy Policy.

Health data is intended to be hosted in France with OVHcloud, a provider certified as a Health Data Host (HDS) within the meaning of Article L. 1111-8 of the French Public Health Code. Activation of this HDS hosting is in progress as of the date of this version. Some technical subprocessors may involve data transfers outside the European Union, covered by contractual safeguards and detailed in the Privacy Policy.

The User may at any time:

• access her data (Art. 15 GDPR);
• rectify it (Art. 16 GDPR);
• request its erasure (Art. 17 GDPR), effective within 30 days;
• export her data in FHIR R4 format (Art. 20 GDPR);
• object to processing (Art. 21 GDPR);
• restrict processing (Art. 18 GDPR);
• withdraw her consent at any time.

To exercise her rights: dpo@cyclezen.ai.

Article 8 · Intellectual property

All the elements making up the Application (designs, interfaces, logos, texts, illustrations, animations, trademarks, source code, databases, algorithmic models) are the exclusive property of Cyclezen or are the subject of licences duly granted to Cyclezen. These elements are protected by French and international intellectual property law.

Cyclezen grants the User a personal, non-exclusive, non-transferable and revocable licence to use the Application, limited to strictly private and non-commercial use, for the duration of her account.

The data entered by the User (cycle, symptoms, journal, notes) remains her property. Cyclezen has a right of use limited to the purposes described in the Privacy Policy and the granular consent form.

Article 9 · Liability

Cyclezen uses reasonable means to ensure the availability of the Application 24 hours a day, 7 days a week, without being able to guarantee the total absence of interruption.

In accordance with French law, Cyclezen cannot be held liable for decisions made by the User on the basis of the information provided by the Application, the Application not being a medical device. However, nothing in the Terms excludes or limits Cyclezen's liability in the event of gross negligence, willful misconduct, bodily injury, or under a mandatory legal provision.

Article 10 · Termination and account deletion

The User may delete her account at any time from the Application ("Settings → My account → Delete my account"). Deletion immediately deactivates access and permanently deletes health data within 30 days, except where legal and accounting obligations require certain data to be kept for the legal period.

Cyclezen reserves the right to suspend or terminate any account in the event of a breach of the Terms, with 15 days' notice sent by email, except in the case of serious misconduct (fraud, security breach, unlawful content), in which case termination is immediate.

Article 11 · Changes to the Terms

Cyclezen reserves the right to modify the Terms at any time. Any substantial change will be notified through a notification in the Application and by email, at least 30 days before it takes effect.

Article 12 · Assignment

Cyclezen reserves the right to assign all or part of its rights and obligations under the Terms to a third party, in particular as part of a merger or acquisition. The User will be informed by email at least 30 days before the effective assignment and may terminate her account free of charge within that period.

Article 13 · Governing law and dispute resolution

These Terms are governed by French law. In accordance with Article L. 612-1 of the French Consumer Code, the User, as a consumer, has the right to use a consumer mediator free of charge with a view to the amicable resolution of a dispute.

Failing an amicable resolution, and subject to the mandatory rules of jurisdiction applicable to consumers, any dispute will be submitted to the competent French courts.

Article 14 · Miscellaneous provisions

If a provision of the Terms is held to be void or unenforceable, the other provisions remain fully applicable. Cyclezen's failure to rely on a breach of the Terms shall not be interpreted as a waiver of the right to rely on it later.

Computer records kept by Cyclezen under reasonable security conditions (access logs, consent timestamps, FHIR AuditEvent audit logs) constitute evidence enforceable between the parties.

Article 15 · Contact

• General email: contact@cyclezen.ai
• Data Protection Officer: dpo@cyclezen.ai
• Security (responsible disclosure): security@cyclezen.ai
• Postal address: 1010 avenue de l'Europe, 33260 La Teste de Buch

Version 1.1 · 24 October 2026