Privacy Policy

This Privacy Policy describes how Cystar (“we”, “us”, or “our”) collects, uses, and protects your information when you use the Cystar mobile application and website (cystar.app).

By using Cystar, you agree to the collection and use of information in accordance with this policy.

1. Information We Collect

We collect only the information necessary to provide and improve the app experience.

a) Information you provide

When using Cystar, you may choose to provide:

• Name or username

• Email address

• Health and lifestyle information you log (e.g. symptoms, cycles, mood, habits)

• Any information you provide when contacting support

b) Automatically collected information

We may automatically collect:

• Device type and operating system

• App usage data (e.g. screens viewed, interactions)

• IP address (approximate location)

• Crash logs and performance data

c) Sensitive (health-related) data

Cystar allows you to log health-related information (such as symptoms, cycle data, and lifestyle habits). This data is:

• provided voluntarily by you

• used only to deliver app features

• treated with additional care and security

2. How We Use Your Information

We use your information to:

• Provide and operate the app’s features

• Display your logged data and insights

• Improve app performance and user experience

• Respond to support requests

• Detect and prevent misuse or technical issues

We do not use your data to make medical decisions or provide medical advice.

3. Data Sharing

We do not sell your personal data.

We may share limited data only in the following cases:

• With service providers (e.g. analytics, hosting) to operate the app

• If required by law or legal process

• To protect our rights, users, or the public

All third parties are required to handle your data securely.

4. Data Retention

We retain your data only for as long as necessary to:

• provide the app services

• comply with legal obligations

• resolve disputes and enforce agreements

You may request deletion of your data at any time (see Section 7).

5. Data Security

We take reasonable administrative, technical, and organisational measures to protect your data, including:

• secure servers

• access controls

• encryption where applicable

However, no method of transmission over the Internet is 100% secure.

6. Your Rights

Depending on your location (including the UK and EU), you may have the right to:

• Access your personal data

• Correct inaccurate data

• Request deletion of your data

• Restrict or object to processing

• Request data portability

To exercise these rights, contact us at: support@cystar.app

7. Data Deletion

You can request deletion of your data by:

• contacting us at support@cystar.app

We will process deletion requests within a reasonable timeframe unless retention is required by law.

8. Children’s Privacy

Cystar is not intended for individuals under the age of 18. We do not knowingly collect data from children.

9. Third-Party Links

Cystar may contain links to third-party websites or services. We are not responsible for their privacy practices.

10. International Data Transfers

Your information may be processed and stored outside your country of residence. We take steps to ensure appropriate safeguards are in place.

11. Changes to This Policy

We may update this Privacy Policy from time to time. Updates will be posted within the app or on our website.

12. Contact Us

If you have any questions about this Privacy Policy or your data, contact us at:

support@cystar.app