Last updated: March 17, 2026

Privacy Policy

Aethyrix (“we,” “our,” or “us”) operates the website at aethyrix.com. This Privacy Policy explains what information we collect, how we use it, and your rights regarding your data.

1. Information We Collect

Information you provide

Email address — if you subscribe to our newsletter or create an account. We never sell email addresses.
Account information — if you create an optional account, we store your email and encrypted authentication tokens via Supabase Auth.

Information collected automatically

Tool preferences and inputs — saved in your browser’s localStorage to restore your last session. This data stays on your device and is never transmitted to our servers unless you are signed in.
Usage data — page views, clicks, session duration, and referral source collected through Google Analytics. This data is anonymized and aggregated.
Device and browser information — browser type, operating system, screen resolution, and IP address (anonymized) used for analytics and security purposes.

Information we do not collect

We do not collect sensitive personal information such as Social Security numbers, government ID numbers, precise geolocation data, or biometric data. Financial inputs entered into our calculators are processed locally in your browser and are not stored on our servers unless you explicitly save them.

2. How We Use Your Information

To provide and improve our free tools and services
To send newsletters and product updates (only with your explicit consent)
To analyze usage patterns and optimize site performance
To detect and prevent fraud, abuse, or security incidents
To comply with legal obligations
To serve relevant advertisements through Google AdSense (see Section 4)

3. Data Storage — Supabase

If you create an account or save data, your information is stored in a Supabase-managed PostgreSQL database hosted on AWS infrastructure in the United States. Supabase employs industry-standard security measures including encryption at rest and in transit. You can read Supabase’s privacy policy at supabase.com/privacy.

4. Third-Party Services

Google Analytics

We use Google Analytics 4 to understand how visitors use our site. Google Analytics collects anonymized usage data. Google may use this data in accordance with their own privacy policy at policies.google.com/privacy. You can opt out at tools.google.com/dlpage/gaoptout.

Google AdSense

We display advertisements served by Google AdSense. Google uses cookies and device identifiers to serve ads based on your prior visits to our website and other sites. You can opt out of personalized advertising by visiting google.com/settings/ads.

Stripe

If you purchase any paid features, payment processing is handled by Stripe. We never store your payment card information on our servers. Stripe’s privacy policy is available at stripe.com/privacy.

5. Cookies

We use the following categories of cookies:

Essential cookies — required for authentication and basic site functionality. These cannot be disabled.
Analytics cookies — set by Google Analytics to understand site usage. These are anonymized and do not personally identify you.
Advertising cookies — set by Google AdSense for ad personalization. You can opt out via Google’s Ad Settings.
Preference cookies — store your tool settings locally (via localStorage, not traditional cookies) to improve your experience across visits.

You can control cookies through your browser settings. Note that disabling certain cookies may affect site functionality.

6. Your Rights — GDPR (EEA/UK Residents)

If you are located in the European Economic Area or United Kingdom, you have the following rights under the General Data Protection Regulation (GDPR):

Right of access — request a copy of the personal data we hold about you
Right to rectification — request correction of inaccurate data
Right to erasure — request deletion of your personal data
Right to data portability — receive your data in a machine-readable format
Right to restrict processing — request that we limit how we use your data
Right to object — object to processing based on legitimate interests or for direct marketing
Right to withdraw consent — withdraw consent at any time where processing is based on consent

To exercise any of these rights, contact us at privacy@aethyrix.com. We will respond within 30 days.

7. Your Rights — CCPA (California Residents)

If you are a California resident, the California Consumer Privacy Act (CCPA) grants you specific rights:

Right to know — request disclosure of the personal information we collect, use, and share
Right to delete — request deletion of your personal information
Right to opt out of sale — we do not sell personal information to third parties
Right to non-discrimination — we will not discriminate against you for exercising your CCPA rights

To submit a CCPA request, email privacy@aethyrix.com.

8. Children's Privacy

Aethyrix is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal information, please contact us immediately at privacy@aethyrix.com and we will delete that information promptly.

9. Data Retention

We retain your information for the following periods:

Account data — retained for the life of your account, plus 30 days after deletion
Newsletter subscriptions — retained until you unsubscribe
Analytics data — retained for 26 months per Google Analytics default configuration
Server logs — retained for 90 days for security and debugging purposes

10. Data Security

We use industry-standard security measures including HTTPS encryption for all data in transit, encrypted storage for sensitive data, role-based access controls, and regular security reviews. No method of transmission over the Internet is 100% secure. We cannot guarantee absolute security but are committed to protecting your information using commercially reasonable means.

11. International Data Transfers

Our services are operated in the United States. If you are located outside the United States, your information may be transferred to and processed in the United States, where data protection laws may differ from those in your jurisdiction. By using our services, you consent to this transfer.

12. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by posting a notice on our website or sending an email to registered users. The “Last updated” date at the top of this page indicates when the policy was last revised.

13. Contact Us

If you have questions about this Privacy Policy or wish to exercise your rights, please contact us:

Email: privacy@aethyrix.com
Website: aethyrix.com