Privacy Policy

Gemmi is a jewelry-design app for iPad. This policy explains what we collect, why, and the choices you have. We collect as little as possible, and your designs are yours.

Who we are

Gemmi is operated by Nayla Obeid, Hopstraat 63, 1000 Brussels, Belgium (“we”, “us”), the data controller for the information described here. For any privacy question, contact us at support@gemmi.app.

What we collect

• Account details. If you create an account, we store your email address and authentication details. You can use Gemmi as a guest, with no account, and everything stays on your device.
• Your designs. Designs are stored on your device. If you sign in and enable cloud backup, your design files are stored in our cloud so you can restore them.
• Certificate scanning. If you scan a gemstone grading certificate (e.g. GIA/IGI), the image or PDF you choose is sent to our AI provider to extract the stone’s specifications and fill them in for you. Only the document you scan is sent, and we don’t use your content to train third-party models.
• Profile & invoicing details. If you fill in your profile, we store the details you enter — your name, profile photo, and invoicing details (company name, VAT/tax ID, and billing address) — to identify your account and prepare invoices. You provide these only if you choose to; you can edit or clear them in the app at any time.
• Diagnostics. We may collect crash logs and basic usage diagnostics to fix bugs and improve the app.

How we use it

• To provide the app: saving, syncing and restoring your work.
• To read gemstone certificates you choose to scan.
• To keep the app secure and to diagnose and fix problems.
• To manage subscriptions, invoicing, and support, where applicable.

We do not sell your personal information.

Service providers

We rely on a small number of processors to run Gemmi:

• Supabase — account authentication and cloud storage of your design files.
• Anthropic — reading the gemstone certificates you choose to scan.
• Apple — app distribution and, where offered, subscription billing. Apple handles your payment details; we never receive your card information.

Retention & deletion

Guest data lives only on your device — delete the app to remove it. If you have an account, you can ask us to delete your account and cloud data at any time by emailing support@gemmi.app. Certificate images you scan are retained only as long as needed to deliver the result and for reasonable abuse-prevention.

Security

Cloud data is protected with access controls so that each account can reach only its own data. No system is perfectly secure, but we take reasonable measures to protect your information.

Children

Gemmi is a professional tool and is not directed at children under 13, and we do not knowingly collect their personal information.

International transfers

Your information may be processed in countries other than your own, including the United States, where our providers operate.

Your rights

Depending on where you live, you may have rights to access, correct or delete your personal information. Contact us at support@gemmi.app and we’ll help.

Changes

We’ll update this page when our practices change and revise the date above.