This is the text each tuition centre's Acadence site shows to its users. On a centre's site, the centre's registered name and contact details appear where this page says "your tuition centre".

AI marking consent

Version 2026-10-27.

In short: photos of your worksheet answers (not your name) go to an AI service, which suggests marks. Your tutor checks every suggestion and decides your mark. You, or your parent or guardian, can say no at any time, and your tutor will mark by hand.

This is optional. The centre now uses OpenAI (below), whose terms need your parent's or guardian's agreement while you are under 18. Your parent or guardian can give that agreement in the parent app, on the centre's signed form, or on the centre's enrolment form. The centre keeps that record and has told Acadence that it holds it for its students. Until you answer here, the centre treats your parent's or guardian's agreement as covering you. Your own "no", or your parent's or guardian's "no", always wins.

With this agreement the centre may use an AI service to suggest marks for your worksheets. The AI looks at your working and final answers and compares them with the marking scheme. It may also draft short remarks and tips on your work. A tutor checks every suggestion, and changes or removes it, before you see a result. The tutor, not the AI, decides your mark. If you say no, your tutor marks your work as usual. Nothing else changes.

What is sent

• Images of your worksheet pages and your answers, the questions and the marking scheme.
• Not your name, username or account details. If you write your name on the page, it will be in the image, so please leave it off.

Where it goes

The centre's software provider, BOOK IN CHAT PTE. LTD. ("Acadence"), sends your work to one of the AI services below, chosen by Acadence for the centre. Acadence, not the centre, is the customer of each AI service. Each service may use your work only to give the suggestions back. Acadence uses each one only where it believes the service's own terms allow it for your work.

• OpenAI (OpenAI OpCo, LLC, United States). Used now (GPT-6.1 Sol). Processed in the United States or other countries where OpenAI works. OpenAI does not use your work to train its AI and keeps a copy for up to 30 days so it can check its service is not misused. OpenAI's rules say a child's data must not be sent without "zero data retention", which Acadence does not have, so OpenAI is never used for a student under 13.
• Alibaba Cloud (Singapore) Pte Ltd (Qwen AI). Not used today. Stored in Singapore under Alibaba's current policy; Alibaba's terms allow processing in other countries outside mainland China. Alibaba says it does not use your work to train its AI. It usually keeps a copy for up to 30 days (up to 2 years if its checks find misuse), then deletes it.
• Anthropic (Anthropic, PBC, United States; Claude models). Not used today. Processed in the United States or other countries where Anthropic works. Anthropic does not use your work to train its AI. It usually keeps a copy for up to 30 days (up to 2 years if its checks find misuse).
• National University of Singapore, School of Computing (its AI service). Never used for your work. NUS has not published where its service runs or what it keeps.
• Google (Gemini). Never used for your work. The centre may use it to read its own question papers and marking schemes, and for demonstration accounts whose work is invented.

• The centre may also use a program on its own server to read the text in your work.
• OpenAI, Alibaba and Anthropic have each agreed in their data-protection terms to use your work only to provide its service, to keep it secure, to delete it after the period stated above, and not to use it to train its AI. Acadence relies on those terms as giving protection comparable to Singapore's PDPA. They are written mainly for EU and US law.
• We do not use any other AI company for your work. If that changes, you will be told first.
• The current details of each service, including where it runs and how long it keeps data, are at acadence.net/legal/providers.

What is kept

• The suggested marks, remarks, the text the AI read from your work, and your tutor's decision, so tutors can check and improve the marking. These follow the retention in the Privacy notice.
• AI can be wrong. If you think a mark is wrong, ask your tutor. A tutor will look at your original work, not the AI's reading of it.

Changing your mind

You can say no, or withdraw this consent, at any time on your profile page under Policies and agreements. Your parent or guardian can do the same in the parent app or by telling the centre. AI marking stops for your future work straight away, including work already waiting. Suggestions already made stay in your record as described in the Privacy notice. Copies held by an AI service are deleted on its schedule (above).