Privacy policy.

We collect information necessary to provide and improve AirInduct Sim:

Account data

Name, email address and optionally institutional affiliation. If you sign in through a third-party provider (Google, GitHub, Apple), we receive your profile name and email from that provider. We never store third-party passwords.

Simulation parameters & results

We store the inputs you provide for each simulation — coil geometry (side lengths, radii, turn count, wire gauge), spatial configuration (offset, separation, angular misalignment) and operating frequency — together with the computed outputs (M, L, k, Q, |H| field maps and optimiser results). This data powers history, comparison and export.

Usage analytics

Anonymised usage data — which topologies are selected, which exports are used, simulation run frequency, feature engagement. Analytics are not associated with individual simulation results.

Payment information

Subscriptions are processed by Stripe. We do not store full card numbers, CVVs or bank account details. We retain only the last four digits, card brand, expiration and billing address for record-keeping.

We use the information we collect for:

• Operating the platform and its simulation services.
• Storing and retrieving your simulation history, saved configurations and exports.
• Processing subscription payments and account billing.
• Sending transactional email — completion notifications, export delivery, password resets.
• Improving solver accuracy by analysing aggregate, anonymised performance metrics.
• Refining ML correction models using anonymised, aggregate data — never individual simulation parameters without explicit consent.
• Communicating platform updates, releases and maintenance schedules.
• Responding to support requests and feedback.
• Detecting and preventing abuse, fraud and technical issues.

Your data lives on secure cloud infrastructure hosted in the United States.

• TLS 1.3 in transit between your device and our servers.
• AES-256 encryption at rest for stored simulation data and account information.
• Production access restricted to authorised personnel with multi-factor authentication.
• Regular security audits and vulnerability assessments.
• Encrypted database backups stored in geographically separate locations.

No method of electronic transmission or storage is 100% secure. Maintain local backups of critical simulation data.

A small set of vetted third parties power parts of the platform:

• Stripe — payment processing (PCI DSS Level 1).
• Vercel — web app hosting and edge delivery.
• Supabase — database hosting, authentication and file storage.
• PostHog — anonymised product analytics. No PII or simulation data is sent.
• Resend — transactional email delivery.

We do not sell, rent or trade your personal information or simulation data to third parties for marketing or advertising purposes.

Depending on your jurisdiction, you may have the following rights:

• Access — request a copy of all personal and simulation data we hold about you.
• Correction — update or correct inaccurate account information through your account settings or by contacting us.
• Deletion — request deletion of your account and associated simulation data. Processed within 30 days, except where retention is required by law.
• Export — export simulation history at any time via the built-in PDF / KiCad / DXF / SPICE export.
• Objection — opt out of analytics or model-training processing by emailing us.

To exercise any of these rights, email privacy@airinductsim.com. We respond within 30 days.

Account data and simulation history are retained while your account remains active. If you delete your account, personal information and simulation data are removed from active systems within 30 days. Encrypted backups may persist for up to 90 days before being purged.

Anonymised aggregate data (e.g. average computation times per topology) may be retained indefinitely — it cannot be used to identify individual users.

Payment and transaction records are retained for 7 years as required by tax and financial reporting regulations.

AirInduct Sim uses a minimal set of cookies:

• Authentication — maintain your login session. Strictly necessary; cannot be disabled.
• Preference — store display preferences (units, default topology, theme).
• Analytics — anonymised PostHog usage data. Disable in browser settings without affecting functionality.

No advertising cookies, no tracking pixels, no cross-site tracking.

AirInduct Sim is not directed at children under 16. We do not knowingly collect personal information from children under 16. If you are a parent or guardian and believe your child has provided us with personal information, contact us at privacy@airinductsim.com and we will delete it.

Users between 16 and 18 may use the platform with consent from a parent or guardian, particularly in academic contexts.

AirInduct Sim is operated from the United States. If you access the platform from outside the US, your information may be transferred to, stored and processed in the United States.

For users in the EEA, United Kingdom or Switzerland, we rely on Standard Contractual Clauses approved by the European Commission. By using the platform, you consent to the transfer of your information to the United States as described here.

We may update this Privacy Policy to reflect changes in our practices, technology or legal requirements. Material changes will be announced by email or in-app at least 30 days before they take effect.

Review periodically. Continued use after the effective date of a revised policy constitutes acceptance. Previous versions are available on request.

privacy@airinductsim.com · privacy questions
legal@airinductsim.com · legal questions