Terms of Service

(1)These Terms of Service ('Terms') govern the use of the online platform KlarTeX (hereinafter 'Platform'), operated by quebi GmbH, Geitau 22, 83735 Bayrischzell, Germany (hereinafter 'Provider').

(2)The Platform enables registered users to create, edit, compile, store, and share scientific or educational documents using a cloud-based LaTeX compiler and collaborative editor.

(3)Any deviating or conflicting terms and conditions of the user shall not apply unless expressly accepted in writing by the Provider.

(1)Certain features of the Platform require registration. The user agrees to provide complete and accurate information during registration.

(2)Login credentials must not be shared with third parties. The user is solely responsible for all activities carried out under their account.

(3)The Provider reserves the right to suspend or delete user accounts that violate these Terms, applicable law, or the Platform's usage policies.

(1)The Provider offers a cloud-based Platform for creating, editing, and managing documents with a rich-text editor and integrated LaTeX compilation.

(2)Core features include real-time collaborative editing, document import and export in various formats (including PDF, LaTeX, DOCX, and Markdown), and integrated bibliography management.

(3)Users may share documents with other registered users by granting specific access permissions (viewing, commenting, or editing).

(4)Certain features, including compilation quotas and storage limits, may be subject to usage restrictions depending on the user's subscription plan.

(1)User content is stored and processed in cloud-based systems.

(2)Certain user inputs — such as search queries or document metadata — may be transmitted to third-party services (e.g., Semantic Scholar, Mendeley) as part of bibliography and reference management features.

(3)By using such features, the user consents to this processing. Further details are described in the Privacy Policy.

(1)The user is solely responsible for all content created, uploaded, or submitted to the Platform.

(2)The user warrants that all submitted content complies with applicable laws.

(3)The user agrees not to upload or otherwise provide any content that violates copyright, trademark, privacy, or other third-party rights.

(4)The user guarantees that shared content is used for legitimate purposes. Content that violates applicable law or the rights of third parties will be removed by the Provider.

(1)The user — or in the case of multiple authors, the document's designated owner — bears full legal responsibility for content shared with other users via the Platform.

(2)By sharing a document, the user confirms that all legal requirements are met and no third-party rights are violated.

(1)The user retains full copyright and authorship of their content.

(2)The user grants the Provider a non-exclusive, worldwide license to store, process, and technically display the content on the Platform solely for the purpose of providing the service.

(1)Certain features or services of the Platform may require payment. The Provider reserves the right to define, modify, or discontinue paid plans, subscription models, or usage-based pricing at any time, provided that existing contractual obligations toward the user are respected.

(2)Payments are processed through a secure, external payment service provider acting on behalf of the Provider. The Provider itself does not collect or store full payment data such as credit card numbers or banking details. All payment processing is subject to the terms and data protection policies of the external payment service provider.

(3)By completing a payment, the user authorizes the Provider and the payment service provider to charge the indicated amount using the selected payment method. The user ensures that sufficient funds or authorization exist for the chosen payment instrument.

(4)Prices and applicable taxes are displayed prior to the conclusion of any transaction. Unless otherwise stated, all prices are quoted in euros and include applicable taxes.

(5)Access to paid features may be suspended or terminated in the event of failed or reversed payments, chargebacks, or suspected fraudulent activity.

(6)In the case of subscriptions, the agreed period and renewal terms will be displayed at the time of purchase. Users may cancel a subscription at any time. Upon cancellation, the subscription remains active until the end of the current billing period; no refunds or credits will be issued for the remaining period.

(7)All payments are final and non-refundable. No refunds or credits will be issued for partial subscription periods, downgraded plans, or unused features, except where required by mandatory applicable law.

(8)Invoices or payment confirmations will be made available electronically. The user agrees to receive billing and contractual information in digital form.

(9)The Provider reserves the right to correct billing errors, miscalculations, or technical issues related to payments at any time, with appropriate notice to the affected users.

The Provider shall not be liable for any loss or corruption of data, compilation errors, technical failures or interruptions, unauthorized access or misuse by third parties, or damages resulting from improper use, external APIs, or third-party services, except where liability is mandatory under applicable law.

(1)The user may delete their account at any time. Deletion takes effect immediately, and all user data and documents will be permanently and irreversibly deleted, except where retention is required by law (e.g., accounting or tax regulations). If the user holds an active paid subscription at the time of deletion, the remaining subscription period is forfeited and no refund will be issued.

(2)The Provider may terminate the contractual relationship for cause, particularly in cases of legal violations or breaches of these Terms.

(1)The Provider may modify these Terms at any time if necessary due to legal, technical, or organizational developments.

(2)Users will be notified of changes in advance. If a user objects to the updated Terms, the contractual relationship will be terminated, and the corresponding account will be permanently deleted.

(1)These Terms are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG).

(2)The place of jurisdiction, where legally permissible, shall be the registered office of the Provider.