Privacy Policy

Effective Date: April 10, 2026 · Last Updated: April 10, 2026

Preflight AI LLC (“Company,” “we,” “us”) operates TachMinder. This Privacy Policy describes how we collect, use, and protect your personal information when you use our Service.

1. Information We Collect

Information you provide

  • Account information: Name and email address from your social login provider (Google, Microsoft, or Apple).
  • Aircraft data: Tail numbers, make/model, maintenance records, logbook entries, flight times, and uploaded documents (photos, PDFs).
  • Communication preferences: Reminder settings, notification preferences, and support correspondence.

Information collected automatically

  • Usage data: Pages visited, features used, and interaction patterns via Google Analytics 4 and Microsoft Clarity.
  • Device information: Browser type, operating system, and screen resolution.

2. How We Use Your Information

  • Provide and improve the TachMinder service
  • Send maintenance reminders and safety alerts
  • Process subscription payments via Stripe
  • Power AI features (maintenance advice, document parsing, AD research) using Anthropic's Claude API
  • Communicate service updates and account notifications
  • Analyze usage patterns to improve the product

3. How We Share Your Information

We do not sell your personal information. We share data only with:

  • Service providers: Auth0 (authentication), Stripe (payments), Neon (database hosting), Cloudflare (file storage), Anthropic (AI processing), Loops.so (email), and Vercel (hosting).
  • Linked providers: If you link your aircraft to a maintenance provider through TachMinder, that provider can see your aircraft data, maintenance status, and logbook entries for the linked aircraft only.
  • Legal requirements: We may disclose information if required by law or to protect the rights and safety of our users.

4. AI Data Processing

When you use AI features (Ask TachMinder, document parsing, pre-visit summaries), your aircraft data and queries are sent to Anthropic's Claude API for processing. Anthropic does not use your data to train their models. AI-generated responses are not stored by Anthropic after processing.

5. Data Storage and Security

Your data is stored on servers in the United States. We use industry-standard security measures including encrypted connections (TLS), encrypted database storage, and access controls. Uploaded files are stored in Cloudflare R2 with access restricted to your account.

6. Data Retention

We retain your data for as long as your account is active. If you delete your account, we will delete your personal data within 30 days, except where retention is required by law or for legitimate business purposes (e.g., billing records).

7. Your Rights

You have the right to:

  • Access the personal data we hold about you
  • Request correction of inaccurate data
  • Request deletion of your account and data
  • Export your aircraft and maintenance data
  • Opt out of marketing communications

To exercise these rights, contact us at support@tachminder.com.

8. Cookies and Tracking

We use cookies for authentication (session management) and analytics (Google Analytics 4, Microsoft Clarity). You can manage cookie preferences through your browser settings or our cookie consent banner.

9. Children's Privacy

TachMinder is not intended for children under 18. We do not knowingly collect personal information from minors.

10. International Users

TachMinder is operated from the United States. If you access the Service from outside the US, your information will be transferred to and processed in the United States.

11. Changes to This Policy

We may update this Privacy Policy from time to time. Material changes will be communicated via email or in-app notification. The “Last Updated” date at the top reflects the most recent revision.

12. Contact

Privacy questions or data requests? Contact us at support@tachminder.com.

Preflight AI LLC
Washington State, USA

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