Privacy policy

Account details — your name and email address, held by our authentication provider so you can sign in.

What you tell us about your preparation — your target band, exam type, test date and how long you can study each day.

Your work — the answers you select, the essays you write, the recordings of your spoken Speaking answers, and the reports generated from them.

Usage — a small number of product events, such as reaching a plan limit or starting a checkout, recorded against your account id so we can tell whether the product works.

We do not collect payment card details, and we never see them. Polar is the merchant of record for every Bandzen purchase: it takes the payment, issues the receipt and handles any sales tax or VAT due where you live. Polar processes cards through Stripe.

To mark your work and explain the result, to build your study plan, to give Bandzen Coach the context it needs to answer usefully, to bill you if you subscribe, and to keep the service secure. We do not sell your data and we do not use it for advertising.

A small set of providers, each doing one job: authentication, database hosting, file storage (including Speaking recordings), application hosting, product analytics, error monitoring, payments (Polar, as merchant of record, and Stripe as its card processor), and the AI models that generate marking and coaching. Your essays and Speaking recordings are sent to a model provider in order to be marked; they are not used to train anyone’s models.

We use necessary cookies to sign you in and run the site, and optional cookies for analytics and marketing that are only set if you allow them. The full list, and how to change your choice, is in the cookie policy.

Your attempts and reports are kept while your account exists, because they are what your progress is measured from. Ask us to delete your account and we remove them, except where we must keep a record of a transaction for tax or accounting purposes.

You can ask for a copy of your data, ask us to correct it, or ask us to delete your account. Write to support@bandzen.com and we will act within 30 days.

support@bandzen.com