Privacy Policy

Last updated: April 20, 2026

1. Introduction

Gold Jewelry Identifier ("the App") is developed by Bulpara Inc. This privacy policy explains how the App collects, uses, and protects your data when you use our AI-powered jewelry appraisal service.

2. Information We Collect

When you use the App, you submit photos of jewelry for AI analysis. These photos are transmitted securely to our servers for processing. We also collect:

• Scan results (metal, karat, hallmarks, real-gold likelihood, verdict, scrap-melt value)
• Scan history stored locally on your device via SwiftData
• Anonymous identifiers for rate limiting and abuse prevention
• Diagnostic and crash data to improve the app

3. How We Use Your Data

Your jewelry photos are sent to our backend API, which forwards them to a third-party AI model (Replicate, running OpenAI's gpt-5-mini) for identification. We use your data solely to provide the appraisal service.

4. Camera Access

The App requests camera access to capture photos of jewelry for analysis. You may also select existing photos from your gallery. Photos are transmitted to our servers exclusively for AI scanning and are not used for any other purpose.

5. Data Storage & Retention

• Uploaded photos are temporarily stored on our servers for the duration of the scan and deleted within 24 hours
• Scan results (verdict, karat, hallmarks, etc.) are stored locally on your device via SwiftData — we do not keep a copy on our servers
• No account or personal information (name, email, etc.) is required to use the App

6. Spot-Price Data

Live gold spot prices are fetched from a third-party commodity-price API. No user data is transmitted to the pricing provider — only a generic "what is the current gold spot price" request.

7. Advertising (Free Tier)

The free version of the App displays advertisements provided by Google AdMob. AdMob may collect device identifiers, IP addresses, and usage data in accordance with Google's privacy policy. Premium subscribers see zero advertisements and no ad-related data collection occurs. For details, see Google AdMob Privacy.

8. App Tracking Transparency (ATT)

On first launch (after onboarding), non-premium users see Apple's standard tracking permission prompt. You may accept or deny. Denying does not limit app functionality — only ad personalization.

9. Subscription Data

Premium subscriptions are processed through the Apple App Store. We verify subscription status via signed StoreKit transactions to unlock premium features but do not receive, process, or store any payment information. Subscription management is handled entirely by Apple.

10. Third-Party Services

• Replicate AI (jewelry identification model processing)
• Cloudflare R2 (temporary secure image storage)
• Third-party commodity price API (live gold spot price)
• Google AdMob (free tier only — Privacy Policy)
• Apple App Store (subscription management — Privacy Policy)

11. Data Security

• All data transmission uses HTTPS encryption
• API authentication via secure API keys
• Rate limiting to prevent abuse (100 requests per minute per device)
• Temporary images stored with access controls and automatic deletion within 24 hours

12. Data Deletion

You can delete individual scans from the History screen at any time. Uninstalling the App removes all locally stored data. Server-side images are auto-deleted within 24 hours; to request immediate deletion of any residual data, contact us at the email below.

13. Children's Privacy

The App is rated 4+ and does not target children under 13 for advertising. We do not knowingly collect personal information from children under 13.

14. Changes to This Policy

We may update this privacy policy from time to time. Changes will be reflected in the "Last Updated" date above. Continued use of the App after changes constitutes acceptance of the updated policy.

15. Contact Us

For questions about this privacy policy, contact us at support@bulpara.com.