End User License Agreement

This End User License Agreement (the "Agreement") governs your use of Menzi (the "Application"), provided by Terros Digital LLC ("we", "our", "us"). By downloading or using the Application you agree to these terms. If you do not agree, do not use the Application.

1. Acknowledgement

This Agreement is concluded between you and Terros Digital LLC only, and not with Apple Inc. We, not Apple, are solely responsible for the Application and its content. This Agreement does not provide usage rules for the Application that conflict with the Apple Media Services Terms and Conditions.

2. Scope of License

We grant you a personal, non-transferable, non-exclusive, revocable license to use the Application on any Apple-branded products that you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions, including access by other accounts associated with you through Family Sharing or volume purchasing. You may not copy, modify, distribute, sell, sublicense, or reverse engineer any part of the Application except as permitted by applicable law.

3. Content You Import — Rights and Responsibilities

The Application lets you import your own audio and text so it can be transcribed, segmented into sentences, and studied as a story ("Imported Content"). This section governs that feature, and it is the one we ask you to read carefully.

You must have the right to import it. You represent and warrant that, for every piece of Imported Content, you either own it, hold a licence permitting this use, or are permitted to use it under an exception such as fair use or fair dealing in your jurisdiction. You are solely responsible for determining that.

Importing infringing material is a breach of this Agreement. You may not import commercial audiobooks, podcasts, films, television, music, ebooks, or any other work obtained from an unauthorised source, or any work whose licence does not permit reproduction or transcription. Buying a copy of a work does not by itself give you the right to upload it here. If you are not sure you hold the necessary rights, do not import it.

What we do with it. You grant us a limited, non-exclusive, worldwide licence to process your Imported Content — to transmit it to our transcription provider, transcribe it, and segment it into sentences and words — solely to provide the Application to you. We do not publish it, share it with other users, or use it to train models. This licence exists only to run the feature and ends when you delete the content or your account.

What we keep: nothing. Imported Content stays on your device. The audio file and its transcript are held in the Application's own storage on your phone, never in our database, and they are gone when you delete the story or remove the Application. Audio you import is sent once to our transcription provider, which returns text and does not retain the recording. The transcript passes through our servers to be matched against the dictionary, and the only thing we keep from that is which words you encountered and how often — your vocabulary statistics, not your text. We do not store the audio, the transcript, or any other part of what you imported.

Enforcement. Because Imported Content stays on your device, we cannot delete it for you — what we can do is stop processing it and close the account. We may refuse to transcribe or process Imported Content, and suspend or terminate accounts, where we reasonably believe this section has been breached, without notice and without refund. We have no obligation to monitor Imported Content, and acting on one report does not oblige us to review any other.

Indemnity. You will indemnify and hold us harmless from any claim, demand, loss, or cost, including reasonable legal fees, arising from Imported Content you provided or from your breach of this section.

4. Copyright Complaints

If you believe material in the Application infringes your copyright, contact us at legal@terrosdigital.com with a description of the work, where it appears, your contact details, and a statement that you hold the rights or are authorised to act for the rights holder. We respond to valid notices promptly, remove infringing material from our systems, and where appropriate terminate the account responsible. Note that content a user imports is held on their own device rather than by us, so terminating the account is the remedy available to us there.

5. AI-Generated Content

The Application uses large language models and speech services to grade your work and generate practice material. The sentences you write and the audio you record are sent to third-party providers for that purpose — see our Privacy Policy for who they are and what each receives. The Application asks for your consent before any of this is shared.

Grades, feedback, translations and generated text may be wrong. They are study aids, not an authoritative assessment of your ability or an authoritative account of the Chinese language. Do not rely on them where accuracy matters.

6. Subscriptions

Menzi Pro is an auto-renewing subscription billed through Apple In-App Purchase. Payment is charged to your Apple ID at confirmation of purchase and renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel it in your Apple ID settings. Refunds are handled by Apple under its own policies.

7. Maintenance and Support

We are solely responsible for providing any maintenance and support for the Application. You and we acknowledge that Apple has no obligation whatsoever to furnish any maintenance or support services for the Application.

8. Warranty

The Application is provided "as is", without warranty of any kind to the fullest extent permitted by law. We are solely responsible for any product warranties, whether express or implied by law, to the extent they are not effectively disclaimed. In the event of any failure of the Application to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price for the Application to you. To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the Application, and any other claims, losses, liabilities, damages, costs or expenses attributable to any failure to conform to any warranty will be our sole responsibility.

9. Product Claims

You and we acknowledge that we, not Apple, are responsible for addressing any claims by you or any third party relating to the Application or your possession and use of it, including product liability claims, any claim that the Application fails to conform to any applicable legal or regulatory requirement, and claims arising under consumer protection, privacy, or similar legislation.

10. Intellectual Property Rights

You and we acknowledge that, in the event of any third-party claim that the Application or your possession and use of it infringes that third party's intellectual property rights, we, not Apple, will be solely responsible for the investigation, defence, settlement and discharge of any such claim.

11. Legal Compliance

You represent and warrant that you are not located in a country that is subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist supporting" country, and that you are not listed on any U.S. Government list of prohibited or restricted parties.

12. Third Party Terms

You must comply with applicable third-party terms of agreement when using the Application, including the Apple Media Services Terms and Conditions and the terms of any service you obtain Imported Content from.

13. Third Party Beneficiary

You and we acknowledge that Apple and Apple's subsidiaries are third-party beneficiaries of this Agreement, and that upon your acceptance of it, Apple will have the right (and will be deemed to have accepted the right) to enforce this Agreement against you as a third-party beneficiary of it.

14. Limitation of Liability

To the maximum extent permitted by law, Terros Digital LLC will not be liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of data, profits or goodwill, arising from your use of the Application. Our total liability for any claim will not exceed the amount you paid us in the twelve months preceding the claim. Nothing here limits liability that cannot be limited by law.

15. Termination

This Agreement is effective until terminated by you or by us. Your rights under it end automatically if you fail to comply with any of its terms. You may terminate at any time by deleting your account in Settings and removing the Application from your devices.

16. Governing Law

This Agreement is governed by the laws of the State of California, United States, without regard to its conflict of law principles, except where mandatory local consumer law applies to you.

17. Contact

Questions, complaints or claims regarding the Application should be directed to:

Terros Digital LLC