Tangyuan Math📄 Terms of Service, in plain words
Short version
Tangyuan Math is free and needs no account. Practice freely, and feel free to use it with family or students. Don't resell, copy, or misuse our name.
What you may do
- Use it free for personal learning, family practice, or classroom support
- Share links to the site — everyone is welcome
What you may not do
- Resell, rent out, or bundle the content into another paid product
- Copy or scrape the game content in bulk, or publish under our name
- Interfere with, damage, or try to bypass how the site works
Accounts (optional)
Parent accounts are entirely optional: the game works fully without one. By creating an account you agree to: not share it, not impersonate anyone, and not upload unlawful or harmful content. We may suspend or delete accounts that are abused.
Content and intellectual property
The questions, artwork, mascot "Tangyuan", and code belong to Tangyuan Math. We keep the rights to these; your practice data always belongs to you.
Disclaimer
The site is provided "as is" and is an educational practice tool — it is not a promise of any teaching or exam outcome. We try hard to keep the content correct, but we don't guarantee it's flawless on every device.
Children
The site is designed to be safe for young learners and collects no personal information (see our Privacy page). We recommend parents or teachers accompany younger children.
Changes to these terms
If the terms change, we'll update this page before any change takes effect.