Privacy Policy

1. Our Commitment

SpectralBench, operated by LumenMark LLC ("we", "us", "our"), is committed to protecting your privacy. Some spectral data processing may involve server-side computation to provide advanced analysis capabilities. We do not sell, share, or use your spectral data for any purpose other than providing the Service to you.

2. Spectral Data

When you use the Service, spectral data files you load may be transmitted to our servers for processing. This data is used solely to perform the analysis you request and is not retained after processing is complete, unless you explicitly save it to your account. We do not:

• Sell, license, or share your spectral data with third parties
• Use your spectral data to train machine learning models
• Retain spectral data beyond the duration of your processing session, unless you choose to save it or the file failed to open (see Section 3)
• Use cookies for tracking or advertising purposes

3. Files That Fail to Load

There is one exception to Section 2, and it exists so that broken files get fixed:

• When a file fails to parse, we keep a copy of it. We cannot diagnose why a file would not open without the file itself.
• When you upload a format we do not support, we keep a copy so we can add support for it — unless you opt out in the dialog we show you at that moment.

These copies are kept until we no longer need them. They are stored privately, are never shared, sold, or published, and are used only to fix the problem you ran into and to support the format for everyone else.

If you gave us your email address along with the file, we may keep that file permanently as a test case, so that once the bug is fixed it cannot come back. Files sent without an email address are not used this way.

You can ask us to delete a file you sent at any time — email hello@spectralbench.com with the file name and roughly when you uploaded it, and we will remove it and confirm.

4. How the Application Works

When you load a file into SpectralBench, it may be processed in your browser, on our servers, or a combination of both, depending on the analysis you request. Server-side processing enables advanced capabilities such as AI-assisted identification, large-scale library searches, and computationally intensive analyses. Data sent to our servers for processing is handled in accordance with Sections 2 and 3 above.

5. Information We May Collect

Beyond the spectral data described in Sections 2 and 3, the following information may be collected through normal operation of the Service:

• Server access logs: Our hosting provider (Vercel) may automatically collect standard web server logs including IP addresses, browser type, operating system, referring URLs, and pages visited. These logs are used solely for operational and security purposes.
• Approximate location and sign-in IP addresses: When you create an account, we save the country, region, and city that your IP address indicates, as determined by our hosting provider. We do not save the IP address itself with your account. When you request a sign-in code, we record the IP address of that request to detect and block abuse. We use this information to understand where our users are and to protect accounts, and we do not share it for advertising.
• Usage analytics: We use PostHog for product analytics to understand how the platform is used (e.g., which tools are most popular, where users encounter issues). For logged-in users, analytics sessions are linked to their account (email address and user ID) to help us improve the user experience. Analytics data is not shared with third parties for advertising or marketing purposes. No spectral data is included in analytics. PostHog uses cookie-free, memory-only persistence — no cookies or localStorage tracking.
• Newsletter email: If you opt in to our newsletter, we store the email address you provide and which page you signed up from, used solely to send occasional product updates. We never share it, and you can unsubscribe at any time.

6. Third-Party Services

• Vercel(hosting) — Vercel's own privacy policy governs their handling of server-level data such as access logs.
• PostHog(product analytics) — receives page views, feature usage events, and for logged-in users, email address and user ID for session attribution. PostHog's privacy policy applies to their handling of this data.

We do not use third-party advertising scripts, tracking pixels, social media widgets, or any other tools that would transmit your information to third parties for marketing purposes.

7. Data Security

We use industry-standard security measures to protect data transmitted to and processed on our servers, including encryption in transit (TLS) and secure infrastructure provided by our hosting partner. Spectral data sent for server-side processing is not persisted beyond your active session unless you explicitly save it or Section 3 applies, and files kept under Section 3 are stored in private storage that is not publicly reachable. However, no method of electronic transmission or storage is 100% secure, and we cannot guarantee absolute security.

8. Children's Privacy

The Service is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us and we will take steps to remove it.

9. International Users

The Service is hosted in the United States. If you access the Service from outside the United States, please be aware that any information collected through server logs may be transferred to and processed in the United States. By using the Service, you consent to this transfer.

10. Your Rights

If you have an account, you may request access to, correction of, or deletion of your personal data and any saved spectral data at any time. If you wish to exercise your data rights under applicable law (GDPR, CCPA, or similar), please contact us at the address below.

11. Changes to This Policy

We may update this Privacy Policy from time to time. The revised version will be posted on this page with an updated effective date. We encourage you to review this page periodically. Your continued use of the Service after any changes constitutes acceptance of the updated policy.

12. Contact

For privacy-related questions or data rights requests, contact us at hello@spectralbench.com.