Terms of Service

Last updated: 2 July 2026

This is a plain-English starter agreement, not legal advice. Please have it reviewed against your jurisdiction before relying on it.

These terms govern your use of Duograde ("the service"). By using the service you agree to them.

What Duograde does

Duograde produces AI-assisted draft marks and feedback for student work against your rubric or judgment. Results are a decision-support tool, not final or authoritative grades. You remain responsible for reviewing outputs — especially flagged items — and for the marks you ultimately award.

Your account

You sign in with Google and are responsible for activity under your account. You must be an educator or otherwise authorised to grade the work you upload.

Acceptable use

Only upload work you have the right to process, in line with your institution's policies and applicable law.
Don't use the service unlawfully, to infringe others' rights, or to attempt to disrupt or reverse-engineer it.
You are responsible for disclosing AI assistance where your institution requires it.

Credits and payment

Grading is paid for with credits: 1 credit grades 1 script. Dry runs are free.
Credits are purchased in one-time packs via Stripe; there is no subscription.
Scripts that cannot be read or are skipped are refunded automatically. Beyond these automatic refunds, purchased credits are non-refundable except where required by law.
Prices may change; changes do not affect credits you have already purchased.

No warranty

The service is provided "as is". AI-generated marks and feedback may contain errors and must be reviewed before use. We do not warrant that outputs are accurate, complete, or fit for any particular purpose.

Limitation of liability

To the maximum extent permitted by law, Duograde is not liable for any indirect or consequential loss, or for decisions made in reliance on its outputs. Nothing in these terms excludes rights that cannot be excluded under applicable consumer law. Where liability cannot be excluded, it is limited to the amount you paid for the service in the preceding three months.

Suspension and termination

We may suspend or terminate access for breach of these terms or misuse of the service. You may stop using the service and request account deletion at any time.

Changes

We may update these terms; the "last updated" date above reflects the current version.

Questions can be raised through your account at app.duograde.com.