Effective Date: March 20, 2026 · Last Updated: March 20, 2026
Parker Physics App ("we," "us," or "our") is committed to protecting your privacy. This policy explains what data we collect, why we collect it, and how we handle it. We do not sell your personal data.
1. Scope of This Policy
This Privacy Policy applies to the Parker Physics App website (parkerphysics.app), any associated mobile or desktop applications, and all interactive simulations and data feeds provided therein. By using our services, you agree to the practices described here.
2. Data We Collect
We collect only what is necessary to provide and improve our service.
Account Data: When you register, we collect your name, email address, and a hashed password. You may optionally provide an institution or affiliation.
Usage Data: We log which simulations you visit, session duration, feature interactions, and error events. This data is aggregated and used to improve performance and content.
Payment Data: Subscription payments are processed by Stripe. We never store full card numbers. We receive only a payment confirmation token and billing summary from Stripe.
Device & Browser Data: IP address, browser type, operating system, screen resolution, and referral URL collected automatically for security and analytics purposes.
Communications: If you contact us by email, we retain the content of that correspondence.
We do not collect biometric data, precise geolocation, or social media credentials.
3. How We Use Your Data
Authenticate your account and maintain your session
Deliver subscription features according to your plan tier
Analyze aggregate usage to improve simulations and data feeds
Detect and prevent fraud, abuse, or security incidents
Comply with legal obligations
We do not use your data to serve third-party advertisements.
4. Third-Party Services & APIs
Parker Physics App displays live data from the following public scientific APIs. No personally identifiable information is transmitted to these services. Requests are made server-side or directly from your browser with no user identifiers attached.
NASA DONKI — Coronal Mass Ejection and geomagnetic storm catalog (api.nasa.gov)
NOAA Space Weather Prediction Center (SWPC) — Solar wind, Kp index, X-ray flux, geomagnetic alerts (services.swpc.noaa.gov)
JPL Horizons — Planetary ephemeris and near-Earth object data (ssd.jpl.nasa.gov)
SOHO / STEREO / SDO — Solar imagery (NASA/ESA coronagraph and imager feeds)
National Weather Service (NWS) — Space weather alerts (api.weather.gov)
Stripe — Payment processing (stripe.com). Stripe's own Privacy Policy applies to payment data.
Vercel — Hosting and edge network. Vercel may log request metadata per their Privacy Policy.
5. Cookies & Local Storage
We use minimal cookies and browser storage:
Session cookie: Keeps you signed in across page loads. Expires at session end or after 30 days if "Remember Me" is checked.
Preference storage (localStorage): Stores UI settings such as simulation parameters you have adjusted. No personal data is stored here.
No tracking or advertising cookies are set by Parker Physics App itself.
You can clear cookies and local storage at any time through your browser settings.
6. Data Sharing
We do not sell, rent, or broker your personal data. We share data only in the following limited circumstances:
Service providers: Stripe (payments), Vercel (hosting) — only the minimum data each provider needs to deliver their service.
Legal compliance: If required by applicable law, court order, or governmental authority.
Business transfer: In the event of a merger, acquisition, or asset sale, user data may transfer with notice given to affected users.
7. Data Retention
Account data is retained for the life of your account and deleted within 30 days of a verified deletion request.
Aggregate usage logs are retained for up to 24 months, then deleted or anonymized.
Payment records are retained for 7 years for tax and legal compliance.
Support correspondence is retained for 3 years from the date of the last exchange.
8. Security
We implement industry-standard security measures including HTTPS/TLS encryption in transit, bcrypt password hashing at rest, and access controls limiting employee access to personal data. However, no system is perfectly secure. We encourage you to use a strong, unique password and to contact us immediately if you suspect unauthorized access to your account.
9. Children's Privacy
Parker Physics App is intended for users age 13 and older. We do not knowingly collect personal information from children under 13 (or under 16 in the EU/EEA). If we learn we have inadvertently collected such data, we will delete it promptly. Parents or guardians who believe their child has provided us data should contact us at the address below.
10. Your Rights
Depending on your jurisdiction, you may have the following rights regarding your personal data:
Access: Request a copy of the data we hold about you.
Correction: Request correction of inaccurate data.
Deletion: Request deletion of your account and associated personal data (subject to legal retention requirements).
Portability: Request your data in a machine-readable format (EU/EEA users under GDPR).
Opt-out of marketing: Unsubscribe from any marketing emails via the link in each email.
Do Not Sell (CCPA): We do not sell personal data; no opt-out is required, but you may contact us to confirm.
To exercise any of these rights, email us at privacy@parkerphysics.app. We will respond within 30 days.
11. Changes to This Policy
We may update this policy from time to time. If we make material changes, we will notify registered users by email at least 14 days before the changes take effect and update the "Last Updated" date at the top of this page. Continued use of the service after the effective date constitutes acceptance of the revised policy.
12. Contact Us
For privacy-related questions, data requests, or concerns: