Frequently asked questions
Questions about Stock3D: inventory, filament, public storefront, stores, and support.
What is Stock3D?
It is a Groupkina mobile app for people who produce and sell 3D-printed products. It tracks product inventory, filament, resellers, expenses, and an optional public storefront. It is not a marketplace: the sale happens between you and the customer.
Where can I download Stock3D?
On Google Play for Android and the App Store for iPhone and iPad. The Download page on this site lists both official links. Do not use third-party APKs.
Does Stock3D sell products for me?
No. The storefront is a catalog. Customers reach you through WhatsApp, phone, email, or a link. Payment, shipping, and product warranty are between you. App subscriptions (Apple, Google, or Pix) pay for Stock3D access, not for catalog items.
How does the public storefront work?
You publish the store in the app. This website hosts the catalog at /s/{slug}. Visitors see products and contact you. You can pause the store without deleting it.
Does Google list my store automatically?
No. We only request indexing if you enable search listing and the store is active. The direct link still works for anyone you share it with.
Does Stock3D track filament?
Yes. The filament module records the material you have so you do not start a batch without knowing what is left on the spool.
Can I track resellers?
Yes. You assign stock items to a reseller, record quantity and exit price, and see what is still with them.
Is there a marketplace calculator?
Yes. You simulate marketplace fees on a piece price. The listing itself stays on the platform you already use.
Is there a community?
Yes. Signed-in users can chat in the in-app community. That is not the customer channel for the storefront.
How do I get support?
Email contact@groupkina.com or WhatsApp +55 (42) 99823-7502. In the app: Settings → Suggestions & reports. Store subscriptions: Settings → Manage store subscription.
How do I delete my account?
In the app, open Settings and delete the account. Deletion is permanent and removes the profile and app data we control, except records we must keep by law. See the Delete account page.
Is the website in Portuguese and English?
Yes. The primary version is Portuguese at stock3d.groupkina.com. English lives under /en. Public storefronts keep the same /s/{slug} URL in both languages.