Terms of use and sale
Last updated: 30 October 2026
1. Provider and scope
These terms apply to the use of Laurenziana (laurenziana.com), provided by Arsenii Borodin, Freundgasse 4-6/14, 1040 Vienna (see legal notice). Other terms do not apply.
2. Service
Laurenziana displays uploaded PDF presentations and explains them using artificial intelligence (AI): slide explanations, answers to questions, translations, quiz questions, study guides and learning progress. Presentations can be shared by link and grouped into classes.
AI notice: All explanations and answers are generated automatically by an AI model. They may be incomplete or wrong and do not replace your course or your teachers. Please check important content yourself.
We aim for continuous availability but cannot guarantee it (e.g. maintenance, outages at the AI providers).
3. Account
You must be at least 14 years old to create an account. Keep your password secret. You can delete your account yourself at any time in the account area (“Delete account”).
4. Your content
- Only upload presentations you are allowed to use (e.g. materials of your own course for your personal use). Share a presentation by link or in a class only if you are entitled to – lecture slides are usually protected by copyright.
- You grant us the right to store and display your content and to send it to the AI providers to the extent needed to provide the service. We acquire no further rights.
- Unlawful content (e.g. copyright infringement, hate, violence, third parties' personal data without a legal basis) is prohibited. Please report such content with a link and reasons to aborodin3866@gmail.com. We review every notice promptly, remove unlawful content and inform those affected of our decision.
- In case of serious or repeated violations we may remove content and suspend accounts.
5. Free plan and Pro
The free plan includes a monthly AI budget of USD 0.50. Pro costs €9.00 per month (no VAT is charged: small business exemption under § 6(1)(27) UStG) and includes additional features (quiz, study guide, teach-back) and a monthly AI budget of USD 5. Once the budget is used up, AI features are paused until the next billing period starts.
Payment is made in advance by card via Stripe. The subscription renews for one month at a time unless you cancel it. You can cancel at any time, without notice, effective at the end of the paid month – in your account under “Manage subscription”. Your account then switches to the free plan.
We announce price changes by e-mail at least 30 days in advance; they apply only from the following billing period, and you can cancel before then.
6. Right of withdrawal
Right of withdrawal
You have the right to withdraw from this contract within 14 days without giving any reason. The withdrawal period will expire after 14 days from the day of the conclusion of the contract.
To exercise the right of withdrawal, you must inform us (Arsenii Borodin, Freundgasse 4-6/14, 1040 Vienna, Austria, phone: +43 676 5473866, e-mail: aborodin3866@gmail.com) of your decision to withdraw from this contract by an unequivocal statement (e.g. a letter sent by post or e-mail). You may use the model withdrawal form below, but it is not obligatory. You can also withdraw using the “Withdraw from contract” function on our website; we will confirm receipt to you by e-mail without delay.
To meet the withdrawal deadline, it is sufficient for you to send your communication concerning your exercise of the right of withdrawal before the withdrawal period has expired.
Effects of withdrawal
If you withdraw from this contract, we shall reimburse to you all payments received from you without undue delay and in any event not later than 14 days from the day on which we are informed about your decision to withdraw from this contract. We will carry out such reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement.
If you requested to begin the performance of services during the withdrawal period, you shall pay us an amount which is in proportion to what has been provided until you have communicated us your withdrawal from this contract, in comparison with the full coverage of the contract.
Model withdrawal form
(Complete and return this form only if you wish to withdraw from the contract.)
— To Arsenii Borodin, Freundgasse 4-6/14, 1040 Vienna, Austria, e-mail: aborodin3866@gmail.com:
— I/We (*) hereby give notice that I/We (*) withdraw from my/our (*) contract for the provision of the following service: Laurenziana Pro
— Ordered on (*)/received on (*)
— Name of consumer(s)
— Address of consumer(s)
— Signature of consumer(s) (only if this form is notified on paper)
— Date
(*) Delete as appropriate.
7. Liability
We are liable without limitation for intent, gross negligence and personal injury. Except for personal injury, we are not liable for slight negligence. In particular, we are not liable for the factual accuracy of AI-generated explanations. Mandatory consumer rights (in particular under the Austrian Consumer Protection Act, KSchG) remain unaffected.
8. Changes to these terms
We notify registered users of changes by e-mail at least 30 days in advance. Material changes to your disadvantage apply only with your consent; if you object, you may cancel.
9. Language
These terms are available in English and in German. Both versions are equally binding; the contract can be concluded in English or German.
10. Governing law and jurisdiction
Austrian law applies, excluding the UN Convention on Contracts for the International Sale of Goods and conflict-of-law rules. For consumers this applies only insofar as it does not deprive them of the protection of mandatory provisions of the country where they habitually reside. For consumers, jurisdiction lies with the courts at their place of residence in Austria or the statutory venues.