# Cookie Policy
Last Updated: March 12, 2026
1. Introduction
This Cookie Policy explains how FertilityFlow ("we," "our," or "us") uses cookies and similar tracking technologies on our website and application.
2. What Are Cookies?
Cookies are small text files stored on your device when you visit a website. They help websites remember your preferences, authenticate your session, and improve your experience.
3. Types of Cookies We Use
3.1 Essential Cookies (Strictly Necessary)
These cookies are required for the website to function and cannot be disabled.
| Cookie Name | Purpose | Duration | Type |
|------------|---------|----------|------|
| session | Maintains your logged-in session | Session | First-party |
| auth-token | Authenticates requests to our API | 7 days | First-party |
| csrf-token | Protects against cross-site request forgery | Session | First-party |
Legal Basis: Necessary for contract performance (providing the Service)
3.2 Functional Cookies
These cookies remember your preferences and choices.
| Cookie Name | Purpose | Duration | Type |
|------------|---------|----------|------|
| language | Remembers your language preference | 1 year | First-party |
| theme | Remembers your theme choice (light/dark) | 1 year | First-party |
| consent-preferences | Stores your cookie preferences | 1 year | First-party |
Legal Basis: Consent or legitimate interest (improving user experience)
3.3 Analytics Cookies (if enabled)
These cookies help us understand how you use the Service (anonymized).
| Cookie Name | Purpose | Duration | Type |
|------------|---------|----------|------|
| ga | Google Analytics - distinguishes users | 2 years | Third-party |
| gid | Google Analytics - distinguishes users | 24 hours | Third-party |
Legal Basis: Consent
Note: Analytics cookies are only set if you consent. We anonymize IP addresses to protect your privacy.
3.4 Performance Cookies
These cookies collect information about how you use the Service to help us improve performance.
| Cookie Name | Purpose | Duration | Type |
|------------|---------|----------|------|
| performance-id | Tracks page load times and errors | Session | First-party |
Legal Basis: Consent or legitimate interest
4. Third-Party Cookies
4.1 Supabase (Authentication)
Supabase sets cookies for authentication and session management:
- Purpose: Maintain secure login sessions
- Privacy Policy: https://supabase.com/privacy
4.2 Stripe (Payment Processing)
Stripe may set cookies during checkout:
- Purpose: Fraud prevention and secure payment processing
- Privacy Policy: https://stripe.com/privacy
4.3 Google Analytics (if enabled)
If you consent to analytics, Google Analytics cookies track usage:
- Purpose: Understand website traffic and user behavior
- Privacy Policy: https://policies.google.com/privacy
5. Local Storage and Similar Technologies
5.1 Local Storage
We use browser local storage to:
- Cache cycle data for offline access
5.2 Session Storage
We use session storage for:
5.3 IndexedDB
We use IndexedDB for:
- Offline data synchronization
Note: Local storage and similar technologies are not technically "cookies" but serve similar purposes.
6. How to Control Cookies
6.1 Our Cookie Preferences Tool
You can manage cookie preferences through our cookie consent banner (appears on first visit) or in your account settings.
To update preferences:
1. Log into your account
2. Go to Settings → Privacy & Cookies
3. Toggle cookie categories on/off
4. Save preferences
6.2 Browser Settings
You can control cookies through your browser settings:
Chrome:
- Settings → Privacy and security → Cookies and other site data
Firefox:
- Settings → Privacy & Security → Cookies and Site Data
Safari:
- Preferences → Privacy → Manage Website Data
Edge:
- Settings → Cookies and site permissions → Cookies and site data
6.3 Browser Extensions
You can use browser extensions to block or manage cookies:
6.4 Do Not Track (DNT)
We respect Do Not Track signals. If DNT is enabled:
- We will not set analytics or performance cookies
- We will only use essential cookies
- Third-party cookies will be minimized
To enable DNT:
Most browsers have a DNT setting in their privacy preferences.
7. Impact of Disabling Cookies
7.1 Essential Cookies
If you disable essential cookies:
- You will not be able to log in
- The Service will not function properly
- Some pages may not load correctly
7.2 Functional Cookies
If you disable functional cookies:
- Your preferences will not be remembered
- You may need to reset language/theme each visit
- User experience may be degraded
7.3 Analytics/Performance Cookies
If you disable analytics/performance cookies:
- Full functionality will be maintained
- We will have less data to improve the Service
- No impact on your user experience
8. Cookie Duration
- Session Cookies: Deleted when you close your browser
- Persistent Cookies: Remain until expiration date or manual deletion
We regularly review and minimize cookie lifetimes.
9. Mobile Applications
Our mobile application (if applicable) may use similar technologies:
These serve similar purposes to cookies and are subject to this policy.
10. Changes to Cookie Policy
We may update this Cookie Policy from time to time. Changes will be notified via:
- Email notification (if material changes)
- Updated "Last Updated" date
11. More Information
11.1 About Cookies Generally
- All About Cookies: https://www.allaboutcookies.org
- ICO (UK): https://ico.org.uk/for-the-public/online/cookies
11.2 GDPR Rights
See our
Privacy Policy for information about your data protection rights under GDPR.
12. Contact Us
For questions about cookies or this policy:
NatProFamSpace - Privacy Team
Email: privacy@natprofam.pl
Website: https://fertilityflow.app
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By using FertilityFlow, you consent to our use of cookies in accordance with this policy. You can withdraw consent at any time through cookie preferences or browser settings.