Privacy Policy

1. Information We Collect

We may collect information in the following categories:

• Account information, such as name, email address, and sign-in identifiers
• Project content, prompts, diagram code, uploaded files, share links, and editing history
• Usage information, such as pages visited, feature interactions, device data, and log records
• Billing-related information, such as subscription status, billing cycle, customer identifiers, and payment event records
• Support or feedback information you voluntarily send to us

We do not intentionally collect more personal information than is reasonably necessary to provide, secure, improve, and support the service.

2. How We Use Information

We may use collected information to:

• Provide core product functions such as editing, rendering, saving, sharing, and billing
• Operate AI-assisted features such as generation, repair, and chat workflows
• Authenticate users, manage accounts, and maintain service security
• Process subscriptions, manage billing access, and respond to payment issues
• Monitor product performance, diagnose errors, and improve reliability
• Respond to support requests, abuse reports, and legal compliance needs

3. AI Processing and User Content

When you use AI-related features, your prompts, diagram content, uploaded files, and related context may be processed by OnUML and by third-party AI or infrastructure providers that help us deliver the requested functionality.

We process this content to generate, repair, analyze, render, store, or return the requested output. Depending on the feature and provider configuration, some content may also be temporarily logged or retained for abuse prevention, debugging, quality assurance, or service improvement.

4. Cookies and Similar Technologies

We may use cookies, local storage, session storage, and similar technologies to keep you signed in, remember preferences, maintain application state, understand product usage, and improve performance. You can control certain browser-based storage settings through your browser, but disabling them may affect product functionality.

5. Sharing of Information

We may share information in the following circumstances:

• With service providers that help us operate hosting, authentication, storage, analytics, AI processing, and billing
• With payment providers such as Stripe or PayPal to process subscriptions and manage billing events
• When required by law, regulation, court order, or lawful government request
• To investigate fraud, abuse, security incidents, or violations of our terms
• As part of a merger, acquisition, financing, or transfer of business assets, subject to applicable safeguards

We do not sell your personal information in the ordinary meaning of that term.

6. Data Retention

We retain information for as long as reasonably necessary to provide the service, maintain account functionality, comply with legal obligations, resolve disputes, enforce our agreements, prevent abuse, and keep reliable business records.

Retention periods may vary depending on the type of data involved. For example, project content, billing records, logs, and support messages may be retained for different durations based on operational and legal needs.

7. Data Security

We use reasonable technical and organizational measures to protect personal information against unauthorized access, loss, misuse, or disclosure. However, no online service or storage system can be guaranteed to be completely secure, and we cannot promise absolute security.

8. International Processing

OnUML and its providers may process or store information in multiple countries or regions. By using the service, you understand that your information may be transferred to jurisdictions with data protection laws that differ from those in your location.

9. Your Choices and Rights

Depending on your location and applicable law, you may have rights to access, correct, delete, export, restrict, or object to certain processing of your personal information. You may also be able to update some account or billing information directly through the product.

If you would like to make a privacy-related request, contact us using the email listed below. We may need to verify your identity before completing certain requests.

10. Third-Party Links and Services

Our website or product may contain links to third-party websites or rely on third-party services. We are not responsible for the privacy practices, content, or security of those third parties. Your use of third-party services is governed by their own terms and privacy policies.

11. Children's Privacy

OnUML is not intended for children under the age required by applicable law to provide valid consent for online services. If you believe a child has provided us with personal information in violation of applicable law, please contact us so we can take appropriate action.

12. Policy Updates

We may update this Privacy Policy from time to time. When we make material changes, we may revise the date below and provide notice through the website, product, or other appropriate channels. Continued use of the service after the updated policy becomes effective means you acknowledge the revised policy.

13. Contact Us

If you have questions about this Privacy Policy or want to submit a privacy-related request, please contact us at [email protected].