Terms of Use

Muffin English — last updated 11 October 2026

The service

Muffin English provides practice exercises for Cambridge-style English exams (B1–C2), including AI-generated feedback on writing and speaking. It is a study tool: feedback and scores are estimates for learning purposes and are not official Cambridge results, and we are not affiliated with Cambridge University Press & Assessment.

Your account

You are responsible for keeping your login credentials safe. You may delete your account at any time in Profile → Delete account.

Subscriptions and purchases

Paid plans unlock additional content and AI feedback credits. Purchases are made through Apple App Store or Google Play and are governed by their payment terms; subscriptions renew automatically unless cancelled in your store account settings at least 24 hours before the period ends. Prices include VAT where applicable, and the App Store or Google Play shows the final price, in the currency of your store account, before you confirm a purchase. Refunds are handled by Apple/Google per their policies.

AI feedback credits

AI evaluations consume credits (a monthly allowance with your plan, plus optional purchased packs). Monthly allowance credits reset each month and do not roll over; purchased packs expire 12 months after purchase.

Rewarded ads (free plan)

On the free plan you may watch a rewarded ad to unlock a single practice task for 30 days. The unlock applies to that task only, is tied to your account, and expires automatically. Ad availability is provided by Google AdMob and is not guaranteed; an unavailable ad does not entitle you to an unlock. Paid plans include no ads.

Acceptable use

Do not abuse the service — no attempts to breach security, scrape content, resell access, or submit unlawful content through free-text answers or feedback-board suggestions. We may edit, decline or remove any suggestion, and may stop an account from posting suggestions.

Content

Exercise content is provided for personal study only and may not be redistributed. You keep ownership of the answers you write; you grant us the right to process them to provide the service (grading, feedback, progress history).

Disclaimer & liability

The service is provided "as is". To the maximum extent permitted by law we are not liable for indirect damages or for decisions made based on practice scores. Nothing in these terms limits rights you have under mandatory consumer law.

Contact & changes

Questions: support@muffinenglish.com. We may update these terms; continued use after an update constitutes acceptance.