XAirReader Terms of Service

App Name: XAirReader Developer: Bu Lingfeng (Individual Developer, the “Developer,” “we,” or “us”) Contact Email: lingfeng.lucky@gmail.com Platforms: iPhone, iPad, Mac Effective Date: August 23, 2026 Last Updated: August 23, 2026

1. Acceptance of the Terms

Welcome to XAirReader (the “App”). These Terms of Service (the “Terms”) form a binding agreement between you and the Developer regarding your use of the App.

By downloading, installing, accessing, or using the App, you acknowledge that you have read, understood, and agreed to be bound by these Terms in their entirety. If you do not agree to any part of these Terms, do not use the App.

If you are under the age of full legal capacity in your jurisdiction, please read and use the App with the involvement and consent of a parent or guardian.

2. License Grant

Subject to your compliance with these Terms, the Developer grants you a personal, limited, non-exclusive, non-transferable, non-sublicensable, revocable license to download and use the App on Apple-branded devices that you own or control, for personal, non-commercial purposes. The scope of this license is also subject to the Licensed Application End User License Agreement in Apple’s App Store Terms of Service (see Section 11 below).

3. Your Conduct

You agree to comply with all applicable laws and regulations when using the App, and you shall not:

Reverse engineer, decompile, or disassemble the App, or attempt to derive its source code (except where expressly permitted by law);
Modify, translate, adapt, or create derivative works based on the App;
Remove, obscure, or alter any copyright, trademark, or other proprietary notices in the App;
Use the App for any unlawful purpose or in any manner that infringes the rights of others;
Use the App to create, store, or distribute content that violates laws or infringes third-party rights.

4. User-Imported Content and IP Responsibility

The App is a reading tool. The App itself does not provide, sell, or distribute any books or copyrighted content; all readable content is imported by you.
You are solely responsible for the content you import, and you represent that you hold lawful rights to, or are duly authorized to use, the books or files you import. You may not import copyrighted content that you are not authorized to use.
Any copyright dispute or legal liability arising from the content you import, store, or use is borne solely by you and has nothing to do with the Developer.
Content you import is stored only on your device (and, if you enable sync, within your own iCloud account). The Developer never handles, obtains, or stores any of your content.

5. Membership and In-App Purchases

Free and paid. The App’s core reading features are free forever. The Developer additionally offers a paid membership to unlock extra capabilities (currently: iCloud sync, note export, external-note editing, etc.; the actual features shown in the App govern).
Billing. Membership is sold through Apple In-App Purchase, currently as a lifetime one-time purchase (a one-off payment; the price shown live in the App via the App Store governs, e.g., ¥18). A previously offered annual subscription has been discontinued; users who already purchased the annual plan retain their existing benefits as agreed at the time of purchase.
Payment and account. All purchases are processed by Apple and billed to your Apple account. Benefits are associated with your Apple account and can be restored on your own devices via “Restore Purchases.”
Refunds. Because in-app purchases are handled by Apple, refund requests must be made to Apple (the App Store) in accordance with Apple’s policies; the Developer cannot process refunds directly.
Price and feature changes. The Developer reserves the right to adjust membership prices, plans, and included benefits; such adjustments do not affect a one-time lifetime purchase you already completed beforehand.

6. Intellectual Property

The intellectual property in the App (including its code, interface design, icons, text, and the “XAirReader” trademark) belongs to the Developer and is protected by applicable law. Except for the license expressly granted herein, you acquire no other rights.
The App uses certain third-party open-source components (such as the Readium Swift Toolkit rendering engine and the bundled “LXGW WenKai Lite” font). These components are governed by their respective open-source licenses (such as BSD and the SIL Open Font License), and the corresponding rights belong to their respective rights holders.

7. iCloud Sync and Third-Party Services

The optional iCloud sync feature relies on Apple’s iCloud services. Your use of this feature is also subject to Apple’s applicable terms and privacy policy. The Developer makes no warranty as to the availability, stability, or data transmission of Apple’s services, and issues caused by Apple’s services themselves are outside the Developer’s responsibility.

8. Disclaimer

The App is provided on an “AS IS” and “AS AVAILABLE” basis. To the maximum extent permitted by applicable law, the Developer makes no warranties, express or implied, including but not limited to merchantability, fitness for a particular purpose, non-infringement, or error-free or uninterrupted operation.
The Developer does not warrant that the App will meet all of your requirements or operate without error, interruption, or data loss. Please back up your important data yourself.
You understand and agree that your use of the App is at your own risk.

9. Limitation of Liability

To the maximum extent permitted by applicable law, and regardless of the legal theory, the Developer shall not be liable for any indirect, incidental, special, consequential, or punitive damages (including but not limited to loss of data, loss of profits, or business interruption) arising out of the use of or inability to use the App. In any event, the Developer’s total liability to you in connection with the App shall not exceed the amount you actually paid to the Developer for the App (including in-app purchases).

Some jurisdictions do not allow the exclusion or limitation of certain implied warranties or liabilities; in such cases, the above exclusions and limitations shall not apply to you to the extent prohibited by such law.

10. Changes and Termination

The Developer may update the App and these Terms from time to time. Updated Terms will bear a new “Effective Date,” and your continued use of the App after the update takes effect constitutes acceptance.
If you breach these Terms, your license to use the App terminates automatically. You may also stop using the App at any time by uninstalling it.

11. Apple-Specific Terms (Licensed Application End User License Agreement)

You understand and agree to the following terms, which are included to satisfy Apple’s requirements:

Parties. These Terms are concluded solely between you and the Developer, not with Apple. The Developer, not Apple, is solely responsible for the App and its content.
Scope of License. The license granted to you is limited to using the App on any Apple-branded devices that you own or control and as permitted by Apple’s Usage Rules.
Maintenance and Support. The Developer is solely responsible for maintenance and support for the App. Apple has no obligation to furnish any maintenance and support services.
Warranty. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any) for the App to you; to the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the App. Any other claims, losses, liabilities, damages, costs, or expenses are the Developer’s responsibility.
Product Claims. The Developer, not Apple, is responsible for addressing any third-party claims relating to the App (including product liability claims, claims that the App fails to conform to any legal or regulatory requirement, and claims under consumer protection or similar laws).
Intellectual Property Rights. In the event of any third-party claim that the App or your possession and use of the App infringes that third party’s intellectual property rights, the Developer, not Apple, will be solely responsible for the investigation, defense, settlement, and discharge of any such claim.
Third-Party Beneficiary. You acknowledge and agree that Apple and its subsidiaries are third-party beneficiaries of these Terms, and Apple has the right to enforce these Terms against you as a third-party beneficiary.
Legal Compliance. You represent that (a) you are not located in a country subject to a U.S. Government embargo or designated as a “terrorist-supporting” country; and (b) you are not listed on any U.S. Government list of prohibited or restricted parties.

12. Governing Law and Dispute Resolution

These Terms and any dispute arising out of or relating to them are governed by the laws of the People’s Republic of China (for the purposes of these Terms only, excluding Hong Kong, Macau, and Taiwan). The parties shall seek to resolve disputes amicably; failing that, either party may bring the dispute before a competent court in the Developer’s place of domicile. Where the mandatory consumer-protection laws of your jurisdiction grant you more favorable rights, those laws shall prevail.

13. Miscellaneous

If any provision of these Terms is held invalid or unenforceable, the remaining provisions shall remain in effect.
The Developer’s failure to exercise or delay in exercising any right under these Terms does not constitute a waiver of that right.
These Terms constitute the entire agreement between you and the Developer regarding your use of the App.

14. Contact Us

If you have any questions about these Terms, please contact:

Email: lingfeng.lucky@gmail.com

XAirReader Terms of Service