Terms of Sale and Use

What you get when you buy a book on Brixus, what happens if something goes wrong, and the rules for creating and publishing your own courses.

Last updated: 25 October 2026

1. Who we are

Books on brixus.eu are sold by:

Some books are written by independent creators and published on our marketplace. We are the seller in every case: you pay us, and we handle your purchase and any questions about it.

2. Buying a book

A book is digital content. Buying one gives you personal, non-transferable access to read it and practise its questions in your Brixus account, on the web and in the Brixus Android app, for as long as the book stays available on Brixus. You may not copy, resell or redistribute its content.

Prices are shown on the book page. Applicable VAT is calculated at checkout from your billing address. Payments are processed by Stripe; we never see your card details. You receive an invoice by email after paying.

3. Refunds and right of withdrawal

Consumers in the EU and the UK normally have 14 days to withdraw from an online purchase. For digital content that right ends once delivery has started, provided you agreed to that beforehand.

Access to a book starts the moment your payment clears. At checkout you therefore confirm that you request immediate access and acknowledge that you lose your right of withdrawal once access starts. You cannot complete the purchase without this confirmation, and it is repeated on your invoice.

Because of this, book purchases are final and not refundable except as described in the next section.

4. If something is wrong

Your statutory rights are not affected by the section above. If a book is not delivered to your account, or does not work or does not match its description, contact us. We will fix the problem, and if we cannot fix it within a reasonable time you are entitled to a price reduction or a full refund.

5. Community subscriptions

Some communities charge a monthly subscription. You can cancel at any time from your billing settings and keep access until the end of the period you have paid for. No further payments are taken after that.

6. AI credits

Generating a course from your own material, and the other AI features of Brixus, are paid for with prepaid AI credits. You top up from $5 through Stripe in your billing settings , and each AI call is charged against your balance when it is made.

Before a course is generated you see an estimate of what it will cost. The actual cost depends on how much AI work each page takes, and each page is charged when it is written. Nothing is generated on credit: when your balance no longer covers a page, that page waits until you top up and retry it.

Unused credit can be refunded: contact us and we refund the part of your top-ups that you have not used.

7. Creating and publishing courses

Your material. Only upload material you are allowed to use. Before you make a course public or sell it, you confirm that you have the right to publish a course based on it — because it is your own work, or because its owner allowed it.

AI-generated content. Brixus writes your course from your material with AI, and AI makes mistakes. You are responsible for checking your course before you publish it, and for what it says once it is published.

Ownership and licence. You keep the rights to your course. By publishing it you allow us to host it, show it and sell it on Brixus, including reading it in the Brixus Android app, for as long as it stays published.

Selling. You set the price. We remain the seller towards buyers (see section 1), and you receive the creator share shown in your earnings, paid out through Stripe.

Reports and takedown. Anyone can report a course from its page or through the contact form . If a course infringes someone else's rights, contains illegal content or breaks these terms, we may take it down. We then tell you what we decided, why, and how to contest it. We close the accounts of creators who repeatedly publish material they have no right to.

8. Applicable law

These terms are governed by Dutch law. If you are a consumer living elsewhere, you keep the protection of the mandatory consumer law of your country of residence.

9. Contact

For questions about a purchase, email k.t.tarhan@brixus.eu or use the contact form and we will get back to you. Our privacy statement describes how we handle your personal data.