Last Updated: April 19, 2026
Please read these Terms and Conditions (the "Terms") carefully before using the services offered by Lyrin AI, Inc. ("Lyrin," "we," "our," or "us"). By downloading, installing or using the Lyrin mobile application (the "App"), or by accessing or using our website at lyrin.ai, including any subdomains and any additional websites we operate from time to time (collectively, the "Site"), you are accessing Lyrin's products and services (together, the "Services"). By accessing or using any part of the Services, you acknowledge that you have read, understood and agree to be bound by these Terms. If you do not agree to these Terms, you must not access or use the Services.
Before you use our Services, you may be required to register for an account ("Account"). By creating an Account, you represent and warrant that:
You are responsible for maintaining the confidentiality of your Account credentials and for all activities that occur under your Account.
Subject to your continued compliance with these Terms, Lyrin grants you a limited, non-exclusive, non-transferable, revocable license to download, install and use the App and related services solely for your personal, non-commercial use. This license is granted to you for the purpose of accessing and using the Services' language-learning features as intended and in accordance with these Terms. By downloading the App, you agree to use the Services in a respectful and responsible manner, and not to generate or practice content that is clearly inconsistent with its language-learning and educational purpose.
You agree that you will not, and will not permit any third party to:
By using the Services, you agree to:
The Services, and all content and materials made available through them, including but not limited to software, source code, algorithms, models, features, functionality, text, graphics, logos, icons, images, audio, video, user interface, design, compilations, and all related intellectual property rights (collectively, "Lyrin Content"), are owned by or licensed to Lyrin AI, Inc. and are protected by copyright, trademark, database rights and other intellectual property and proprietary rights and laws.
Except for the limited license expressly granted to you under these Terms to download, install and use the Services, you do not acquire any right, title or interest in or to the Services or any Lyrin Content. All rights not expressly granted to you are reserved by Lyrin and its licensors.
You must not copy, modify, adapt, translate, create derivative works of, distribute, sell, lease, sublicense or otherwise exploit any part of the Services or Lyrin Content. You must not attempt to extract or access the source code of the App, translate the App into other languages, or create derivative versions of it, except where such restrictions are not permitted by applicable law.
Nothing in these Terms grants you any right to use the Lyrin name, trademarks, logos or other brand features without our prior written consent.
"User Content" means any content or information that you submit, upload, record, transmit or otherwise make available through the Services, including without limitation your text prompts, chat messages, voice and audio recordings, corrections and feedback, profile information and any other data or materials you provide.
You retain all ownership rights you have in your User Content. Except for the limited license you grant to us below, these Terms do not transfer any ownership of your User Content to Lyrin.
By submitting or otherwise making User Content available through the Services, you grant Lyrin a non-exclusive, worldwide, royalty-free, sublicensable and transferable license to host, store, reproduce, process, transcribe, analyze, adapt, modify, translate, create derivative works from, display and otherwise use your User Content as reasonably necessary to: (a) operate, maintain and provide the Services to you and other users; (b) personalize and improve your language-learning experience; and (c) comply with law and enforce these Terms.
Subject to any choices or controls we may make available to you from time to time, you also grant Lyrin a non-exclusive, worldwide, royalty-free, sublicensable and transferable license to use your User Content, in de-identified, aggregated or otherwise processed form, to develop, train, test and improve our artificial intelligence models, algorithms and language-learning services.
You represent and warrant that you have all rights, consents and permissions necessary to grant the licenses set out in this section, and that your User Content, and our use of it in accordance with these Terms, will not infringe or violate any third-party rights or any applicable law.
The Services may display, include or provide access to content, software, libraries, models, data or other materials owned by third parties ("Third-Party Content"). Third-Party Content may be made available to you under separate terms and conditions specified by the relevant third party.
All intellectual property rights in Third-Party Content are the property of their respective owners and may be protected by copyright, trademark and other laws. Nothing in these Terms grants you any rights to use any Third-Party Content except as necessary to use the Services in accordance with these Terms and any applicable third-party terms.
You are responsible for complying with any additional terms and conditions that apply to Third-Party Content, websites, services or applications that you access through the Services. Lyrin does not control and is not responsible for any Third-Party Content or third-party services, and, to the fullest extent permitted by law, accepts no liability for any loss or damage arising from your use of them.
For information about how Lyrin collects, uses, and shares your personal data, please check out our Privacy Policy. By using the App, you acknowledge that your personal data will be collected and used in accordance with our Privacy Policy.
The App may offer certain features, content or services for a fee, including monthly or yearly subscriptions ("Paid Subscriptions"). If you choose to make a purchase within the App or on our Site (each, an "In-App Purchase"), you agree to pay the applicable fees.
In-App Purchases are processed by third-party payment providers, such as the Apple App Store, Google Play Store and Stripe (each, a "Payment Provider"). The price, billing frequency (for example, monthly or yearly), automatic renewal terms and any other purchase terms will be presented to you by the relevant Payment Provider at or before the point of purchase. Those terms are between you and the Payment Provider and are in addition to these Terms.
If your purchase is a Paid Subscription, it will generally automatically renew at the end of each subscription period at the then-current price, and will continue to renew in this way, unless you cancel it in accordance with the instructions provided by the relevant Payment Provider. You can manage or cancel your subscriptions in your account settings with the applicable Payment Provider. We may also provide information about your current subscription and instructions on how to cancel it in the App's "Account Settings" for your convenience, but any changes to billing or cancellation will need to be completed through the applicable Payment Provider.
Lyrin is not responsible for any errors, delays or failures by any Payment Provider. Any requests for refunds or billing corrections may need to be directed to the relevant Payment Provider, subject to its policies and applicable law.
You are responsible for any taxes or additional charges applied by your payment method provider, Payment Provider or other third parties in connection with your purchases.
The App and all Services, features and content made available through it are provided "as is" and "as available", with all faults and without warranties of any kind, whether express, implied or statutory.
To the fullest extent permitted by law, Lyrin disclaims all warranties and conditions of any kind, whether express, implied or statutory, including any implied warranties of merchantability, fitness for a particular purpose, title, quiet enjoyment and non-infringement, and any warranties arising out of course of dealing or usage of trade.
Lyrin does not warrant that the Services will be uninterrupted, secure or error-free, that any defects will be corrected, or that the Services will be free of viruses or other harmful components. While Lyrin endeavors to keep the Services updated and accurate, it may rely on information provided by third parties and does not guarantee the accuracy or completeness of such third-party information.
Lyrin does not warrant the accuracy, completeness or usefulness of any information, translations, corrections, suggestions or other outputs generated or provided through the Services, and you acknowledge that such outputs may be incorrect, incomplete, misleading or inappropriate. You are solely responsible for evaluating and verifying any outputs before relying on them or using them in any context, especially for High Risk Uses such as but not limited to:
Lyrin is not responsible for any damage that may result from the Services or your use of the Services. You understand and agree that you use the Services at your own discretion and risk, and that Lyrin is not responsible for any damage to your property or any loss of data.
The App uses artificial intelligence and machine-learning technologies to generate responses, translations, corrections, suggestions and other content ("AI Outputs"). AI Outputs are generated automatically and may be incorrect, incomplete, misleading, offensive or otherwise inappropriate. Lyrin does not guarantee the accuracy, reliability, completeness or usefulness of any AI Outputs, and you are solely responsible for how you use and rely on any AI Outputs.
In particular, you should not rely on AI Outputs without independent verification in any situation where inaccuracies could cause harm or significant consequences, especially in High Risk Uses including for study or examinations, immigration, legal, financial, medical or safety-critical purposes.
TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL LYRIN, ITS AFFILIATES, EMPLOYEES, LICENSORS, OR SERVICE PROVIDERS BE LIABLE FOR ANY DAMAGES, DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR PUNITIVE, INCLUDING, WITHOUT LIMITATION, LOSS OF DATA, INCOME, PROFIT OR GOODWILL, LOSS OF OR DAMAGE TO PROPERTY AND CLAIMS OF THIRD PARTIES ARISING OUT OF YOUR ACCESS TO OR USE OF THE SERVICES, OUR CONTENT, OR ANY MEMBER CONTENT, HOWEVER CAUSED, WHETHER BASED ON BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), PROPRIETARY RIGHTS INFRINGEMENT, PRODUCT LIABILITY OR OTHERWISE.
THE FOREGOING SHALL APPLY EVEN IF WE WERE ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IF YOU BECOME DISSATISFIED IN ANY WAY WITH THE SERVICES, YOUR SOLE AND EXCLUSIVE REMEDY IS TO STOP YOUR USE OF THE SERVICES.
YOU HEREBY WAIVE ANY AND ALL CLAIMS ARISING OUT OF YOUR USE OF THE SERVICES. BECAUSE SOME STATES DO NOT ALLOW THE DISCLAIMER OF IMPLIED WARRANTIES OR THE EXCLUSION OR LIMITATION OF CERTAIN TYPES OF DAMAGES, THESE PROVISIONS MAY NOT APPLY TO YOU. IF ANY PORTION OF THIS LIMITATION ON LIABILITY IS FOUND TO BE INVALID OR UNENFORCEABLE FOR ANY REASON, THEN OUR AGGREGATE LIABILITY SHALL NOT EXCEED ONE HUNDRED DOLLARS ($100).
THE LIMITATION OF LIABILITY HEREIN IS A FUNDAMENTAL ELEMENT OF THE BASIS OF THE BARGAIN AND REFLECTS A FAIR ALLOCATION OF RISK. THE SERVICES WOULD NOT BE PROVIDED WITHOUT SUCH LIMITATIONS AND YOU AGREE THAT THE LIMITATIONS AND EXCLUSIONS OF LIABILITY, DISCLAIMERS AND EXCLUSIVE REMEDIES SPECIFIED HEREIN WILL SURVIVE EVEN IF FOUND TO HAVE FAILED IN THEIR ESSENTIAL PURPOSE. THE FOREGOING DOES NOT APPLY TO LIABILITY ARISING FROM ANY FRAUD OR FRAUDULENT MISREPRESENTATIONS, OR ANY OTHER LIABILITY THAT CANNOT BE LIMITED BY APPLICABLE LAW.
All actions you make and information you give on the Services remain your responsibility. You agree to indemnify, defend and hold harmless Lyrin and its affiliates, officers, directors, employees, agents and licensors from and against any and all claims, demands, actions, proceedings, losses, liabilities, damages, costs and expenses (including reasonable legal fees) arising out of or relating to:
Lyrin reserves the right, at its own expense, to assume the exclusive defense and control of any matter otherwise subject to indemnification by you, in which case you agree to cooperate with Lyrin's defense of such claim.
The foregoing provision does not require you to indemnify Lyrin for any unconscionable commercial practice or any fraud, deception, false promise, misrepresentation or concealment, suppression or omission of any material fact in connection with the Services.
Lyrin may suspend or terminate your access to the Services (in whole or in part) at any time, with or without notice, if we reasonably believe that: (a) you have breached these Terms; (b) your use of the Services poses a security risk or could cause harm or liability to us, other users or any third party; (c) we are required to do so by law or by a court or governmental authority; or (d) it is no longer commercially viable for us to provide the Services.
We may also cease providing the Services generally and terminate these Terms at any time. Unless we inform you otherwise, upon any termination: (i) the rights and licenses granted to you under these Terms will immediately cease; and (ii) you must stop using the Services and delete the App from your devices.
You may stop using the Services at any time and may delete your account. You can delete your account at any time by opening the Lyrin App, going to the "Settings" page, selecting "Delete Account," and following the instructions to terminate your account.
Termination of your access to the Services, whether by you or by Lyrin, will not affect any rights or obligations that have accrued up to the date of termination, including any payment obligations, limitations of liability or dispute resolution provisions, all of which will survive termination to the extent necessary to give them effect.
We may change these Terms from time to time, for example to reflect changes to our services, our business practices or applicable laws. When we make changes, we will post the updated Terms within the App or on our Site and update the "Last Updated" date at the top of these Terms.
Where required by law, or if we make material changes that affect your rights or obligations, we will also provide you with additional notice (for example by email or in-App notification) before the changes take effect.
Unless otherwise stated in the notice, the updated Terms will take effect immediately once posted. If you do not agree to the updated Terms, you should stop using the Services. Your continued use of the Services after the updated Terms have become effective will constitute your acceptance of the changes.
If any provision of these Terms is held to be invalid, illegal or unenforceable by a court or other tribunal of competent jurisdiction, that provision will be enforced to the maximum extent permissible and the remaining provisions of these Terms will remain in full force and effect.
Informal Dispute Resolution. Before filing any claim against Lyrin, you agree to first contact us at support@lyrin.ai and to attempt to resolve the dispute informally. Please include your name, the email address associated with your Account, and a brief description of your dispute. If we are unable to resolve the dispute within thirty (30) days after we receive your notice, you or Lyrin may pursue your claim as permitted by these Terms.
No Class Actions. To the fullest extent permitted by applicable law, you and Lyrin agree that each may bring claims against the other only in your or its individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated or representative action. Unless both you and Lyrin agree otherwise in writing, no court may consolidate or join more than one person's or party's claims or otherwise preside over any form of a class, collective, consolidated or representative proceeding.
These Terms, and any dispute or claim (including non-contractual disputes or claims) arising out of or in connection with them or their subject matter or formation, are governed by and construed in accordance with the laws of the State of Delaware, United States of America, without giving effect to any choice or conflict of law provision or rule.
Subject to Section 12 (Dispute Resolution and Class Action Waiver), you and Lyrin agree that the courts located in Delaware will have exclusive jurisdiction over any dispute or claim arising out of or in connection with these Terms or your use of the Services, and you waive any objection to such courts on grounds of inconvenient forum or lack of personal jurisdiction, except where such waiver is not permitted by applicable law.
Entire Agreement. These Terms (together with any policies or terms expressly incorporated by reference, such as our Privacy Policy) constitute the entire agreement between you and Lyrin in relation to the Services and supersede any prior or contemporaneous understandings or agreements, whether written or oral, relating to the Services.
No Waiver. Any failure or delay by Lyrin to exercise any right or enforce any provision of these Terms will not operate as a waiver of that or any other right or provision, nor will any single or partial exercise of any right preclude any other or further exercise of that or any other right.
Assignment. You may not assign, transfer or delegate any of your rights or obligations under these Terms, by operation of law or otherwise, without Lyrin's prior written consent. Lyrin may assign, transfer or delegate its rights and obligations under these Terms, in whole or in part, without restriction and without notice to you.
Relationship of the Parties. Nothing in these Terms is intended to create any partnership, joint venture, employment, agency or fiduciary relationship between you and Lyrin.
Force Majeure. Lyrin will not be liable for any failure or delay in performance to the extent caused by circumstances beyond its reasonable control, including acts of God, natural disasters, war, terrorism, riots, labor disputes, governmental action, failures of telecommunications or internet services, or power outages.
Headings. Headings are for convenience only and do not affect the interpretation of these Terms.
Export and Sanctions Compliance. You may not access or use the Services if (a) you are located in, or are a resident or national of, any country or territory that is subject to a comprehensive U.S. Government embargo, or (b) you are, or are controlled by, any person or entity that is listed on any U.S. Government list of prohibited or restricted parties. By using the Services, you represent and warrant that you are not subject to such restrictions and that you will not use the Services in violation of U.S. export control or sanctions laws.
The Services may contain links to, or integrations with, third-party websites, content, services or applications (collectively, "Third-Party Services"). Third-Party Services are provided by independent third parties and are not under Lyrin's control. Lyrin does not endorse or assume any responsibility for any Third-Party Services, and your use of them is at your own risk and subject to any separate terms and privacy policies applicable to those Third-Party Services.
The App is made available to you via third-party app stores, such as the Apple App Store and Google Play Store (each, an "App Store"). Your download and use of the App from an App Store may be subject to that App Store's own terms and conditions, including any rules on payments, subscriptions, refunds and usage restrictions. Lyrin is not responsible for any App Store's services and has no liability for any act or omission of any App Store.
From time to time, Lyrin may make available features, functions or services that are identified as beta, experimental, preview, early-access or similar ("Beta Features"). Beta Features may be made available for evaluation or testing purposes only and may be subject to additional terms notified to you at the time.
Beta Features may be incomplete, may contain bugs or errors, and may be changed, suspended or discontinued at any time without notice. Lyrin provides Beta Features "as is" and "as available", without any warranties or commitments of any kind (in addition to the disclaimers set out in these Terms), and they are not covered by any service-level commitments or support obligations.
You acknowledge that your use of any Beta Features is at your own risk, and that Lyrin may use any feedback, suggestions or ideas you provide in relation to Beta Features without restriction and without any obligation to compensate you.
In addition to using your User Content and other data to operate and provide the Services, Lyrin may use certain data to develop, train, test and improve its artificial intelligence models, algorithms and language-learning services, among other things. This data may include your text prompts, chat messages, voice and audio recordings, corrections and feedback, and related usage logs and metadata (collectively, "Training Data").
Lyrin may use Training Data, in de-identified, aggregated or otherwise processed form, to:
Where required by applicable law or as described in our Privacy Policy, we will implement appropriate safeguards in relation to Training Data, which may include steps to remove direct identifiers or to aggregate or pseudonymize data. Our Privacy Policy provides further information about how we collect, use and protect your personal data, and any choices or controls that may be available to you in relation to its use for these purposes.
If you have any questions or suggestions about these Terms and Conditions, please do not hesitate to contact us at support@lyrin.ai.
Lyrin AI, Inc.
Email: support@lyrin.ai