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三玄堂FENG · SHUI
◇ DATA SECURITY ◇

Privacy & data security

Consistent with our Privacy Policy, with technical detail. Privacy Policy

Operated by
PURITY NEXUS LTD
Company number
16221366
Registered in
England and Wales
Registered office
71-75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom

1. Where floor plans live

Uploaded plans are stored in PostgreSQL on your analysis row (inputData, originalImage, annotated payloads in result fields). We do not publish a public CDN URL for your plan. Admin RAG PDFs live under public/uploads/rag — separate from user uploads.

2. Retention

Records remain while your account exists so you can open History. Delete a row below or from History; account erasure follows the Privacy Policy (except where law requires logs).

3. Model training

We do not use your plans or reports to train our own models. Each run sends necessary content through OpenRouter to configured downstream providers (e.g. Qwen, DeepSeek). Third-party retention is governed by their terms.

4. Payments

Stripe processes payments; we do not store full card numbers. We keep paymentId and related metadata on the analysis row.

5. Security (summary)

HTTPS in transit; app-layer auth on APIs; unpaid clients never receive resultData in JSON responses.

6. Delete analyses

When logged in, delete completed or failed rows below; in-progress rows must finish first. Deletion cascades linked feedback and removes embedded plan/report JSON.

Delete my analyses and uploads

Recent analyses on your account. Deletion is permanent.

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History