Terms of Use

1. The service

Stock3D is a business tool for people who make and sell 3D-printed products. It lets account holders manage product inventory, filament stock, related business records, a realtime community chat with other logged-in users, and an optional public catalog (“online store”).

The online store is a showcase only. It displays products the store owner chooses to publish and provides the contact details that owner entered (for example WhatsApp, phone, email, or a link). Stock3D does not process product sales, checkout, shipping, or payments between visitors and store owners. Any deal is solely between those parties.

2. Accounts

You must provide accurate information and keep your login secure. You are responsible for activity on your account.

You may delete your account in the app Settings. Deletion is permanent and removes the profile and associated app data we control, subject to records we must keep by law.

3. Trial and paid access

New accounts may receive a limited free trial. After the trial, continued use of the app requires an active paid plan, except for accounts we designate for App Store or Google Play review.

If a free trial is offered, any unused portion of the trial is forfeited when you purchase a subscription.

Pix (Brazil) may be offered as prepaid access for a fixed period. Pix does not auto-renew. Pix is processed by Mercado Pago and is not an App Store or Google Play in-app purchase.

4. Auto-renewable subscriptions (EULA)

Stock3D Premium is an auto-renewable subscription that unlocks the paid app for the subscription period. After any trial, a paid plan is required to keep using the app, except for accounts we designate for store review. Two plans are offered:

Stock3D Premium Monthly — length: 1 month. Price: the amount shown in the Apple App Store or Google Play at purchase (typically R$ 9,99 in Brazil).

Stock3D Premium Annual — length: 1 year. Price: the amount shown in the Apple App Store or Google Play at purchase (typically R$ 95,90 in Brazil, about 20% less than twelve monthly payments).

Apple App Store: payment is charged to your Apple ID at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period, at the cost of the renewal shown in the store. Manage or cancel in Settings → [your name] → Subscriptions, in the Stock3D app Settings, or at https://apps.apple.com/account/subscriptions. Apple’s standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Google Play: payment is charged to your Google Play account at confirmation of purchase. The subscription renews automatically until you cancel. Cancel in Google Play → Payments & subscriptions, in the Stock3D app Settings, or at https://play.google.com/store/account/subscriptions. Cancellation typically stops future renewals; you keep access until the end of the current period. Refunds follow Google Play policy and applicable law (the current period is usually not refunded). Deleting the app does not cancel the subscription. Google Play Terms of Service: https://play.google.com/about/play-terms/index.html

Apple or Google handle billing, taxes, refunds, and cancellation for those store purchases.

Privacy Policy: https://stock3d.groupkina.com/privacy

5. Your content

You keep ownership of inventory data, photos, filament records, chat messages, store text, and other content you upload.

You grant Groupkina a limited license to host, store, and display that content so the service can function — including showing your catalog on the public storefront if you enable it.

You are responsible for the accuracy of your listings, contact details, and chat messages, and for having the rights to the photos and text you publish.

6. Community chat

Realtime chat is available only to signed-in users. Do not post unlawful, spam, harassing, or abusive content, or attempt to scrape other users’ data.

We may mute, hide, or remove content and suspend accounts that violate these rules. Chat is not a support channel and is not monitored in real time.

7. Public storefront

If you publish a store, visitors can view your products and contact you through the methods you configured. Stock3D is not a party to those conversations or any sale.

We may hide or suspend a storefront for abuse, legal requests, unpaid app access, or if you deactivate it. Visitors may report a store through the form on the store page.

8. Acceptable use

Do not misuse the service, bypass access controls, interfere with other users, or use Stock3D for fraud or illegal goods. We may suspend or terminate access for violations.

9. Disclaimer and liability

The service is provided as-is. We do not warrant uninterrupted availability or that listings or chat content are accurate.

To the extent allowed by law, Groupkina is not liable for deals between store visitors and store owners, lost profits, or data loss beyond what applicable law requires.

10. Changes

We may update these terms. Continued use after an update means you accept the revised terms. The date at the top of this page shows the latest version.

11. Contact

For questions about these terms, email contact@groupkina.com or use https://stock3d.groupkina.com/contato.