Privacy Policy
Cystar (“we”, “us”, or “our”) operates the Cystar mobile application (“App”).
This Privacy Policy explains how we collect, use, and protect your information when you use the App.
By using Cystar, you agree to this Privacy Policy.
1. Information We Collect
We collect information to provide and improve the app experience.
a) Information you provide
When you create an account or use the App, you may provide:
First name or username
Email address
Phone number (optional)
Age
Location (e.g. city)
Health and lifestyle data (e.g. symptoms, menstrual cycle, mood, habits)
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 diagnostics
c) Sensitive (health-related) data
Cystar allows you to log health-related information, including:
Symptoms
Cycle data
Mood and lifestyle patterns
This data:
is provided voluntarily by you
is used to provide tracking, summaries, and insights within the app
is not used to provide medical advice, diagnosis, or treatment
d) Analytics (Firebase)
We use third-party services such as Firebase to collect:
App usage data
Crash reports
Performance information.
This helps us improve the App.
e) WhatsApp Communication (Optional)
If you choose to provide your phone number and opt in:
We may contact you via WhatsApp for general support or app-related communication, only if you have explicitly opted in
This is optional
You will only be contacted if you have explicitly opted in
You can opt out at any time
We do not use WhatsApp to provide medical advice.
2. How We Use Your Information
We use your data to:
Provide and operate the App
Display your logged data and summaries
Improve app functionality and user experience
Respond to support requests
Maintain security and prevent misuse
We process your data based on your consent and our legitimate interest in providing and improving the App.
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. Firebase, hosting providers)
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. Age Restriction
Cystar is intended for individuals 18 years and older only.
We do not knowingly collect or process data from individuals under 18. If we become aware that such data has been collected, we will delete it.
5. Aggregated & Anonymised Data
We may use aggregated and anonymised data (which cannot identify you) to:
Understand general usage trends
Improve features and product decisions
Support internal analytics and product improvement
6. Data Retention
We retain your data while your account is active or as needed to:
provide the App
comply with legal obligations
resolve disputes
You may request deletion of your data at any time (see Section 10).
7. 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.
8. Your Rights
Depending on your location, 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
9. Data Deletion
You can request deletion of your data by:
contacting us at:
We will process deletion requests within a reasonable timeframe unless retention is required by law.
10. Third-Party Services
Cystar may use third-party services (e.g. Firebase) which have their own privacy policies.
11. 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.
12. 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.
13. Contact Us
If you have any questions about this Privacy Policy or your data
contact us at:
support@cystar.app
