Service terms

Updated 4 November 2026

Cube3D provides browser-based maths and science experiments for exploration and teaching. Contact: guoqishao@gmail.com.

Learning with Cube3D

Three selected experiments are free. Models are illustrative learning tools: parents and teachers should check age suitability and the assumptions used in each experiment. They are not instructions for performing hazardous physical experiments.

Accounts and regional access

Parents, guardians and teachers manage accounts and purchases. Use an email you control and protect verification links and sharing codes. Access in mainland China uses invitations and applications; other regions can sign in and purchase where checkout is available. An application or a signed-in account alone does not grant premium access.

90-day passes

Family Plus is US$9.90 and Teacher preview is US$29.90 for a fixed 90-day period. The checkout total and currency are shown before payment; your card provider may apply currency conversion or fees. There is no automatic renewal. Successful direct purchases activate access on the verified buyer email. Invitation access and its expiry are shown during activation and in the account page.

Family Plus includes all experiments and experiments added during the access period. Teacher preview also includes the available teaching activities and teacher resources; additional teaching packs are being developed. Each pass permits up to three verified emails in total, including the buyer. Sharing codes grant access and should only be shared with intended users. Public resale or publication of codes is not permitted.

Orders, support and changes

Keep your order reference. For payment errors, duplicate charges, access problems or refund requests, contact us at the email above so we can review the order. Refunds and payment disputes may revoke the associated access. This description does not limit rights that apply under law. Experiments may be improved during the preview; the live account page shows your current plan and expiry.

Responsible use

Do not bypass access controls, abuse email or application forms, or disrupt the service. Use teacher materials within the scope of teaching; a pass does not transfer ownership of Cube3D content. See the privacy notice for information handling.