Privacy Policy

1. Overview

DiagramThis ("we", "us", "our") operates diagramthis.com. This policy explains what information we collect, how we use it, and your rights regarding that information. By using DiagramThis you agree to the practices described here.

2. Information We Collect

• Account information — email address and password (hashed) when you create an account.
• Content you submit — descriptions, documents, notes, and other text you upload or paste for processing.
• Usage data — number of diagrams generated, plan tier, feature interactions.
• Billing information — payment processing is handled entirely by Stripe (a PCI-compliant payment processor). We do not store card numbers or payment details.

3. How We Use Your Information

• To provide and operate the DiagramThis service.
• To process the content you submit and generate diagrams and related outputs.
• To manage your account, subscription, and billing.
• To send transactional emails (account confirmation, password reset, billing receipts).
• To monitor service health, diagnose errors, and improve reliability.

4. AI Processing and Your Data

The content you submit is processed using AI solely to generate the diagrams and insights you request. We do not use your content to train AI models, and we never sell it or share it for advertising. Any providers involved in processing are bound by strict data-protection agreements and may use your content only to deliver the service to you.

5. Data Storage and Security

We take the security of your data seriously and implement industry-standard measures to protect it — including encryption in transit (TLS) and at rest, secure cloud infrastructure, and strict access controls. You stay in control of your data and can delete it at any time. As with any online service, no method of transmission or storage is 100% secure, but we work hard to safeguard your information.

6. Data Retention and Deletion

You may delete individual diagrams from your account at any time. To request full deletion of your account and associated data, contact us at [email protected]. We will process deletion requests within 30 days. Some data may be retained for legal or billing compliance purposes as required by law.

7. Service Providers

Your data is used only to power DiagramThis's core features — AI processing to generate your diagrams, summaries, and insights, and secure payment processing through Stripe for billing. We do not sell, rent, or share your data for advertising.

8. Cookies

We use session cookies required for authentication. We do not use third-party advertising or tracking cookies.

9. Your Rights

You can review and update your profile and delete individual diagrams at any time from within the app. Depending on your location, you may also have rights under privacy laws such as GDPR or CCPA — including to access, export, or delete your personal data. To make a request, just email us at [email protected] and we'll take care of it.

10. Children

DiagramThis is not directed to children under 16. We do not knowingly collect personal information from children under 16.

11. Changes to This Policy

We may update this policy from time to time. Material changes will be communicated by updating the "Last updated" date above. Continued use of the service after changes constitutes acceptance of the updated policy.

12. Contact

Questions about this policy: [email protected]