Terms of Service

1. Acceptance of Terms

By accessing or using CLAce (“the Service”) at clace.sg, you agree to be bound by these Terms of Service (“Terms”) and our Privacy Policy. If you do not agree to these Terms, you must not use the Service.

The Service is operated by CLAce (“CLAce”, “we”, “our”, “us”).

2. Description of Service

CLAce is an AI-powered educational tool that provides automated marking feedback on Chinese compositions submitted by Singapore Primary 4–6 (P4–P6) students, in preparation for the Primary School Leaving Examination (PSLE).

The Service uses large language model (LLM) AI technology to generate scoring estimates, language feedback, vocabulary suggestions, and model paragraphs. AI-generated feedback is for educational guidance purposes only and does not constitute professional educational advice, nor does it guarantee any particular examination result. CLAce is not a registered tuition centre and the Service is not a substitute for a qualified human tutor.

We reserve the right to modify, suspend, or discontinue any part of the Service at any time, with reasonable prior notice where practicable.

3. Account Registration & Eligibility

• You must be at least 18 years old to create an account. By registering, you confirm you meet this requirement.
• Accounts are created by a parent or legal guardian (“Account Holder”) on behalf of their child(ren). Child profiles are sub-accounts under the Account Holder’s subscription.
• You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account.
• You must provide accurate, current, and complete registration information. You must update this information promptly if it changes.
• One account per household per email address. Multiple child profiles are supported depending on your subscription plan.

4. Subscription Plans & Billing

Plans

CLAce offers a free tier and paid subscription plans (Pro, Family). The specific features, submission limits, and child profile limits applicable to each plan are as displayed on the Pricing page at the time of your subscription.

Billing & Auto-Renewal

• Paid subscriptions are billed on a monthly or annual cycle in advance, via Stripe.
• Subscriptions auto-renew at the end of each billing period unless cancelled before the renewal date.
• All prices are displayed in Singapore Dollars (SGD) inclusive of applicable GST, unless otherwise stated.
• CLAce reserves the right to change pricing with at least 30 days’ notice. Price changes take effect at the next renewal period.

Cancellation

You may cancel your subscription at any time via the account settings page. Cancellation takes effect at the end of the current billing period. You will retain access to paid features until that date.

Refunds

We offer a 7-day satisfaction refund for first-time paid subscribers who have not used more than 3 marking submissions during that period. Refund requests must be submitted to support [at] clace [dot] sg within 7 days of your initial payment. Subsequent billing periods are non-refundable. Annual plan refunds are calculated on a pro-rata basis for the unused months, at our sole discretion.

Approved refunds are issued to your original payment method or, at our discretion, as CLAce Credits (see section 5). Promotional credits that were earned rather than purchased are not refundable.

This refund policy does not affect your rights under the Singapore Consumer Protection (Fair Trading) Act.

5. CLAce Credits, Referral & Social-Share Rewards

What CLAce Credits are

CLAce Credits (“Credits”) are a promotional store-credit balance denominated in Singapore Dollars, held against your account. Credits may be used only to pay for services CLAce itself provides. They are not legal tender, a bank deposit, a stored-value facility redeemable for cash, or a means of paying any third party. One Credit unit is treated as S$0.01.

Earning Credits

• Referral conversion. If a person who signs up through your personal referral link subscribes to a paid plan and that first subscription payment is actually charged in real money, Credits are added to your account. A referred person also receives a one-time welcome Credit once they complete onboarding.
• Social-share reward. If you publish a genuine public post about CLAce that meets the guidelines shown in the Share panel and it passes our review, Credits are added to your account.
• All reward amounts, the referral attribution window, and eligibility rules are as displayed in your account at the relevant time and may change with notice. Rewards are discretionary; we may decline, reduce, or delay any reward, and we review each social-share submission before granting it.

Buying Credits (top-up)

You may buy Credits in fixed bundles via Stripe. Purchased Credits carry the same usage restrictions as earned Credits, except where stated below for expiry and refunds.

Using and redeeming Credits

Credits may be applied to:

• a fixed period of Pro access, at the then-current Credit price;
• an amount owing on your Stripe subscription invoice, reducing the card charge for that cycle;
• individual practice items — a Paper 2 practice set, a model composition, a theme cheatsheet (each granting a limited access window), or an additional composition marking.

Prices for each item are shown in your account before you confirm and may change with notice. When you spend Credits, earned Credits are drawn down before purchased Credits, and older Credits before newer ones. Redeeming Credits for Pro access does not create a Stripe subscription and does not auto-renew.

Expiry

Earned Credits expire after the period shown in your account (currently six months from the date they are granted). Purchased Credits do not expire. Expired Credits are forfeited and are not reinstated or compensated.

No cash value; non-transferable

Credits have no cash value, cannot be withdrawn, sold, assigned, transferred between accounts, combined across accounts, or bequeathed. Earned Credits are not refundable under any circumstances. Unspent purchased Credits may be refunded to the original payment method at our sole discretion; once purchased Credits have been spent, that portion is non-refundable.

Reversal and forfeiture

We may reverse, withhold, freeze, or cancel Credits and any related reward — including creating a negative balance recovered from future Credits — where:

• a referred person’s payment is refunded, reversed, or charged back, or their subscription is found to be fraudulent;
• we detect self-referral, coordinated or circular referrals, fake or duplicate accounts, misleading or inauthentic posts, or other abuse of the programme;
• you breach these Terms or the Acceptable Use section.

Programme changes

We may change reward amounts, item prices, expiry periods, eligibility, or any other aspect of the programme, and may suspend or end the programme entirely, with reasonable notice. Credits already earned keep the expiry date that applied when they were granted.

Regulatory status and tax

CLAce Credits are a closed-loop, limited-purpose facility usable only for CLAce’s own services and are not a payment service regulated under the Singapore Payment Services Act 2019. All prices are stated in SGD. GST is not currently charged on subscriptions, Credit purchases, or redemptions; this may change if CLAce becomes GST-registered, in which case tax will be applied as required by law.

6. Free Tier & Submission Limits

Free tier accounts receive a limited number of composition marking submissions per calendar month as specified on the Pricing page. Unused submissions do not carry over. Exceeding the free limit will require an upgrade to a paid plan to submit further compositions that month.

Submission counts are calculated per account (not per child profile). In the event of a technical failure that prevents marking from completing, the submission will not count against your limit.

7. Acceptable Use

You agree not to use the Service to:

• Submit content that is unlawful, harmful, hateful, defamatory, or obscene.
• Attempt to reverse-engineer, extract, or reproduce CLAce’s AI prompts, marking rubrics, or scoring models.
• Circumvent submission limits, access controls, or other technical restrictions.
• Create multiple accounts to abuse the free tier or any promotional offer.
• Collect or harvest any personal data of other users from the Service.
• Use the Service in any manner that could damage, disable, or impair the infrastructure or interfere with other users’ enjoyment.
• Use automated bots, scrapers, or other non-human means to interact with the Service without prior written consent.

We reserve the right to suspend or terminate accounts that violate these usage policies without prior notice and without refund.

8. Content Ownership & Licence

Your content

You retain full ownership of the compositions and content you submit to CLAce. By submitting content, you grant CLAce a limited, non-exclusive, royalty-free licence to process, store, and transmit that content for the sole purpose of delivering marking feedback and displaying your history within the Service.

We will not sell, licence, or share your compositions with third parties for commercial purposes. We will not use identified composition content to train or fine-tune third-party AI foundation models without your explicit consent.

We may create anonymised, teacher-reviewed model versions of submitted compositions — a rewrite to a higher standard that keeps the storyline — as learning material for the submitting student and, where suitable, for other students on the Service. A model version never carries the student’s name or any identifying detail.

Our content

The CLAce platform, including its code, design, marking prompts, rubrics, UI components, and all AI-generated feedback, is the intellectual property of CLAce Pte. Ltd. and is protected by Singapore copyright law. You may not reproduce, redistribute, or commercially exploit any part of the Service or its outputs without prior written permission.

9. AI-Generated Content Disclaimer

Feedback, scores, grade estimates, corrections, and model paragraphs generated by CLAce are produced by artificial intelligence and may contain errors, inconsistencies, or imprecisions. AI marking is designed to approximate PSLE examiner standards based on structured rubrics, but it is not infallible and should not be treated as a final or authoritative assessment.

We do not guarantee that following CLAce feedback will result in any specific examination grade. Parents and students should use CLAce feedback as one input alongside school guidance, tuition, and their own independent judgement.

CLAce is not affiliated with, endorsed by, or in partnership with the Singapore Ministry of Education (MOE) or the Singapore Examinations and Assessment Board (SEAB).

10. Limitation of Liability

To the fullest extent permitted by Singapore law, CLAce and its directors, employees, and agents shall not be liable for:

• Any indirect, incidental, special, or consequential loss or damage arising from use of the Service.
• Any loss of data, loss of profits, or examination results arising from reliance on AI-generated feedback.
• Service interruptions, errors, or delays caused by third-party infrastructure providers (Supabase, Vercel, Anthropic, Stripe, etc.).
• Unauthorised access to your account resulting from failure to maintain the confidentiality of your credentials.

Our aggregate liability to you for any claim arising out of or relating to these Terms or the Service shall not exceed the total subscription fees you have paid to CLAce in the 3 months preceding the claim.

Nothing in these Terms limits or excludes our liability for fraud, fraudulent misrepresentation, or any liability that cannot be excluded under Singapore law.

11. Indemnification

You agree to indemnify and hold harmless CLAce and its officers, directors, and employees from any claims, damages, or expenses (including reasonable legal fees) arising from: (a) your use of the Service in violation of these Terms; (b) content you submit; or (c) your violation of any third party’s rights.

12. Termination

We may suspend or terminate your access to the Service, with or without notice, if we reasonably believe you have violated these Terms, engaged in fraudulent activity, or your continued use poses a risk to other users or the Service.

You may terminate your account at any time through the account settings page. Upon termination, your personal data will be handled in accordance with our Privacy Policy.

Provisions of these Terms that by their nature should survive termination (including sections on intellectual property, disclaimers, and limitation of liability) shall continue to apply.

13. Governing Law & Dispute Resolution

These Terms are governed by and construed in accordance with the laws of the Republic of Singapore, without regard to its conflict of law principles.

Any dispute arising out of or in connection with these Terms shall first be submitted to good-faith negotiation. If the dispute is not resolved within 30 days, either party may refer the matter to the courts of Singapore, which shall have exclusive jurisdiction.

For consumer disputes, you may also seek recourse through the Singapore Consumer Association (CASE) or the Small Claims Tribunals where applicable.

14. Changes to These Terms

We may update these Terms from time to time to reflect changes in the Service, legal requirements, or business practices. We will notify you of material changes by email or prominent notice on the site at least 14 days before the new Terms take effect. Your continued use of the Service after the effective date constitutes your acceptance of the updated Terms.

15. Contact

For questions about these Terms, please contact us: