Privacy Policy

When you use Signature Identifier, we may collect:

• Signature images and optional reference samples you choose to upload for identification.
• Optional context you provide (suspected signer name, notes).
• Account information if you sign in (email, username).
• Usage analytics and basic device information.

We use what you share to:

• Produce a single signature dossier per submission.
• Run the optional side-by-side comparison against a reference sample.
• Improve the examiner model, in aggregate, over time.
• Maintain, secure, and troubleshoot the service.

To produce a dossier, Signature Identifier uploads the images and text you submit to Google’s Gemini model via a secure connection. By tapping “analyze,” you agree to share that submission with Google so the request can be processed. Please review Google’s policies for how they handle inbound content.

Dossiers and uploaded images are stored on Firebase and Google Cloud infrastructure with industry-standard security. Public dossiers are visible in the community archive; you can choose visibility when you submit.

We do not sell personal information. We do share anonymized, aggregated usage signals with analytics providers to improve the product.

You may:

• Request deletion of your dossiers and uploaded images.
• Change the visibility of your dossiers.
• Opt out of analytics tracking.

Questions? Write to support@identifysignature.com.