Last updated: 2026-07-10
Welcome to Hend. These Terms of Service (“Terms”) govern your use of the Hend application and website (collectively, the “Service”) operated by Monobryn (“we,” “us,” or “our”).
By accessing or using Hend, you agree to be bound by these Terms. If you disagree with any part of the Terms, you may not access the Service.
Hend is a language learning application that utilizes AI-generated content, user-imported content, and learning analytics to help users learn languages through reading and listening.
You must create an account and sign in to access and use Hend.
You are responsible for maintaining the confidentiality of your account credentials and for all activities under your account.
You agree to provide accurate and complete information when creating an account and to update such information to keep it accurate and current.
You retain all rights to any content you import, upload, or create using Hend.
By importing or creating content using our Service, you grant us a non-exclusive, royalty-free license to use, store, and process your content solely for the purpose of providing and improving the Service.
You are solely responsible for all content that you import or generate using the Service. You agree not to use the Service to:
AI-generated content provided through Hend is created through automated processes and may contain inaccuracies or inappropriate content. We strive to minimize such occurrences but cannot guarantee the quality or appropriateness of all AI-generated content.
The Service, including all intellectual property rights in the software, design, and original content provided by us, belongs to us or our licensors.
You may not:
Our Privacy Policy explains how we collect, use, and protect your personal information. By using Hend, you agree to our Privacy Policy, which is incorporated into these Terms by reference.
Hend uses a credit-based system for AI-powered features such as text generation, audio narrations, YouTube imports, and web article imports. New accounts receive 25 free credits upon signup. Additional credits can be purchased in the amounts displayed on our website or within the application. Credits do not expire.
Payments are processed through Polar, our Merchant of Record. By purchasing credits, you agree to the terms and conditions of Polar.
Hend does not offer recurring subscriptions. Credits are purchased as one-time top-ups and are deducted only when you use credit-based features.
Refund policies are described on our website. While we generally aim to resolve issues without refunds, we evaluate refund requests on a case-by-case basis. Refunds may be granted at our discretion for legitimate concerns with the service. Partially used credit packages are not eligible for refunds.
You may terminate your use of Hend at any time by deleting your account. Any unused credits remaining at the time of deletion are non-refundable.
We reserve the right to suspend or terminate your account if you breach these Terms. When reasonably possible, we will provide notice before suspension or termination.
Upon termination, your right to use the Service will immediately cease. Account deletion does not necessarily clear local databases on your devices or erase synchronized Jazz row history. Jazz’s ordinary delete operation is a soft delete, and complete hard deletion is not currently available through Hend’s account-deletion flow. The following sections will survive termination: Intellectual Property, Limitation of Liability, Disclaimer, and Governing Law.
Hend uses Jazz, a local-first relational database. In supported browsers, reads and writes normally use a local database stored in the browser’s Origin Private File System (OPFS), then synchronize in the background. In unsupported environments, Hend may use an in-memory database and rely on cloud synchronization.
Previously synchronized data may remain available during a temporary loss of connectivity. Initial loading, authentication, cloud-only features, and synchronization require internet access. Local browser data may be cleared by you or the browser and should not be treated as your only backup.
When you sign in, learning records, files, and their row-version history are synchronized with Jazz Cloud to provide durability and cross-device access. Jazz uses a trusted-server model and does not provide system-wide end-to-end encryption. The Jazz sync service processes synchronized data to evaluate queries, apply permissions, and deliver authorized records.
Hend authenticates you with Clerk and provides Jazz with a signed token containing a stable user identifier. Jazz uses that identity to apply server-side row-level permissions. Most learning data is limited to its creator; content you deliberately share may be readable by others.
Authorized Hend backend processes and administrators may use privileged credentials that bypass ordinary user permissions when reasonably necessary to operate, secure, migrate, support, or administer the Service; respond to a user request; or comply with law. Connections use encrypted transport, but Hend does not add application-level end-to-end encryption to data stored through Jazz.
Synchronization is automatic when connectivity is available and is eventually consistent. Devices may temporarily show different data while updates propagate or concurrent changes are reconciled.
We implement reasonable measures to maintain data integrity but cannot guarantee against browser storage eviction, synchronization delay, conflicting edits, service interruption, migration error, or every other failure. You are responsible for exporting or otherwise backing up critical data. We disclaim liability for any loss of local or synchronized data to the extent permitted by law.
The Service is provided “as is” and “as available” without warranties of any kind, either express or implied, including, but not limited to, implied warranties of merchantability, fitness for a particular purpose, or non-infringement.
In no event shall we be liable for any indirect, incidental, special, consequential or punitive damages, including without limitation, loss of profits, data, use, goodwill, or other intangible losses, resulting from your access to or use of or inability to access or use the Service.
You agree to defend, indemnify, and hold harmless Monobryn and its licensors from and against any claims, liabilities, damages, losses, and expenses, including without limitation reasonable attorney fees and costs, arising out of or in any way connected with your access to or use of the Service or your violation of these Terms.
We reserve the right to modify these Terms at any time. We will provide notice of significant changes through the Service or by other means. Your continued use of the Service after such modifications constitutes your acknowledgment and acceptance of the modified Terms.
These Terms shall be governed by and construed in accordance with the laws of Denmark, without regard to its conflict of law provisions.
If you have any questions about these Terms, please contact us at oliver@monobryn.com.
If any provision of these Terms is held to be unenforceable or invalid, such provision will be changed and interpreted to accomplish the objectives of such provision to the greatest extent possible under applicable law and the remaining provisions will continue in full force and effect.
Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights. If any provision of these Terms is held to be invalid or unenforceable by a court, the remaining provisions of these Terms will remain in effect.
These Terms constitute the entire agreement between us regarding our Service and supersede any prior agreements we might have had between us regarding the Service.
Thank you for using Hend!