Privacy Policy

Effective date: October 20, 2026

In short

1. Who we are

Grainwise (“the app”) is published by Vantix Media LLC, a company registered in Wyoming, USA (“we”, “us”). For any privacy question or request, contact us at .

2. What we process and why

DataWhyWhere it is kept
Photos you choose to identify (taken with the camera or picked from your gallery)To identify the wood species. Before sending, the app resizes the photo and re-encodes it, which removes location and other hidden photo data.Sent to our server and to Anthropic for the identification only. Our server does not store photos. A copy stays on your device in your scan history.
Your choice of Board, Furniture or Floor, and your app languageSent with the photo so the result fits what you scanned and is written in your language.Not stored on our server.
A random app identifier (created by the app, not linked to your name, phone number or advertising ID)To apply fair-use limits (scans per day and per week) and prevent abuse.Daily and weekly counters on our server, deleted automatically after at most 9 days.
Scan history, collection and preferencesTo show your past results and saved woods.Only on your device.
Purchase information (subscription status, product, purchase dates, an anonymous app user ID)To unlock Pro and restore purchases.Processed by Apple or Google and by RevenueCat (see section 3). We never see your payment card details.
Technical data (IP address, device and request information in server logs)To deliver requests, keep the service secure and fix errors.Processed by our hosting provider, Cloudflare, for a limited time.

We do not ask for your name, email or phone number to use the app. If you email us, we use your email only to answer you.

3. Service providers

We share data only with providers that help us run the app, under their own privacy and security terms:

We do not sell or rent personal data, and we do not share it for advertising.

4. Your permission

The app asks for your explicit permission before sending any photo to the AI service. You can turn this off anytime in Settings → AI & your photos; identification then stops working until you allow it again. The app also asks the system permission to use the camera and, when you pick a photo, your photo library.

5. How long we keep data

6. Your rights

Depending on where you live (for example under the GDPR in Europe or privacy laws in the United States), you may have the right to access, correct, delete or object to the processing of your personal data, and to complain to your data protection authority. Because we don’t have accounts and keep almost no data on our servers, most of your data is under your control on your device. For any request, email ; we answer within 30 days.

Where the law requires a legal basis, we process data to provide the service you request (contract), with your consent (photo analysis by AI), and for our legitimate interests in security and preventing abuse.

7. International transfers

Our providers may process data in the United States and other countries. Where required, they use safeguards such as standard contractual clauses.

8. Security

Data is sent over encrypted connections (HTTPS). Our AI provider key is kept on our server and never in the app. No method of transmission or storage is completely secure, but we work to protect your data.

9. Children

Grainwise is not directed to children under 13, and we do not knowingly collect personal data from them. If you believe a child has sent us personal data, contact us and we will delete it.

10. Changes

We may update this policy. We will change the effective date above and, for important changes, tell you in the app.

11. Contact

Vantix Media LLC –