End User License Agreement

Last updated: November 12, 2025

PLEASE READ THIS END USER LICENSE AGREEMENT ("EULA") CAREFULLY BEFORE DOWNLOADING OR USING DuoFacts (THE "APP"). BY INSTALLING OR USING THE APP YOU AGREE TO BE BOUND BY THIS EULA. IF YOU DO NOT AGREE, PLEASE DO NOT DOWNLOAD, INSTALL, OR USE THE APP.

1. Parties and Contract Formation

This EULA is a legal agreement between you (an individual or single entity) and the developer and publisher of DuoFacts ("we", "us", or "our"). It also covers any updates, patches, media, or documentation supplied with the App. For iOS users, this EULA incorporates the Apple Licensed Application EULA, available at Apple Standard EULA.

2. Scope of License

We grant you a limited, non-exclusive, non-transferable, revocable license to download and use one copy of DuoFacts on any device you own or control for personal, non-commercial purposes, subject to your continued compliance with this EULA and the applicable store rules. We reserve all rights not expressly granted.

3. Account and Eligibility

You must meet the minimum age of digital consent in your jurisdiction (13+ in most regions, 16+ within the EEA/UK for features that rely on personal data). If you are under the age of majority, a parent or legal guardian must supervise your use and accept this EULA on your behalf. You are responsible for the accuracy of any information you provide and for keeping your device and credentials secure.

4. Permitted Use and Restrictions

You agree not to do, attempt, or permit others to do any of the following:

• Copy, modify, translate, or create derivative works of the App except where allowed by law.
• Reverse engineer, decompile, or disassemble the App, except where such restriction is prohibited.
• Remove or alter proprietary notices, or make the App available to third parties via resale, rental, or sublicensing.
• Use the App in any unlawful, harmful, harassing, or objectionable manner or in violation of third-party agreements.
• Interfere with or disrupt the App, attempt to bypass security, or overload its infrastructure.

5. Content and User-Generated Content

DuoFacts provides informational or entertainment content ("Facts") and is not a substitute for professional advice. You rely on content at your own risk. If the App allows you to submit or share content, you grant us a worldwide, royalty-free license to host and display that content solely for operating and improving the App. You must own or have permission to share anything you submit, and we may remove content that violates this EULA or the law.

6. Privacy

Your use of the App is subject to our Privacy Policy. The policy explains what information we collect, how we use it, and how it may be shared. Additional platform privacy disclosures may apply on the store listing.

7. In-App Purchases, Subscriptions, and Trials

Some features may require in-app purchases or auto-renewing subscriptions. All billing is handled by the applicable store and is subject to its payment policies. Unless cancelled at least 24 hours before the end of a billing cycle, subscriptions renew at the then current price. Free trials convert to paid plans unless cancelled in time. Pricing may change by region and taxes may be added where required. Refund requests must be made directly with the store provider.

8. Updates and Changes

We may release updates or modifications to the App. Some updates may be required to keep using the App. This EULA governs all updates unless accompanied by a separate license. Material changes to this EULA will be communicated via the App or store listing, and continued use after updates becomes effective constitutes acceptance.

9. Third-Party Services and Open Source

The App may link to or rely on third-party services. We are not responsible for their content, availability, or policies. Open-source components included in the App remain governed by their respective licenses, which take precedence for those components.

10. Data Charges and Device Requirements

You are responsible for any mobile data, messaging, or other connectivity fees incurred by using the App and for ensuring that your hardware, operating system, and network meet the requirements to run DuoFacts.

11. Disclaimer of Warranties

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY. WE DO NOT GUARANTEE UNINTERRUPTED OR ERROR-FREE OPERATION, NOR THAT DEFECTS WILL BE CORRECTED.

12. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY LAW, WE AND OUR AFFILIATES WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, DATA, OR GOODWILL ARISING FROM YOUR USE OF THE APP. OUR TOTAL LIABILITY WILL NOT EXCEED THE AMOUNT YOU PAID FOR THE APP OR, FOR SUBSCRIPTIONS AND IN-APP PURCHASES, THE AMOUNTS PAID WITHIN THE PRECEDING TWELVE (12) MONTHS. SOME REGIONS DO NOT ALLOW CERTAIN LIMITATIONS, SO THESE MAY NOT APPLY TO YOU.

13. Indemnification

You agree to defend, indemnify, and hold harmless the Developer and our affiliates, officers, employees, and licensors from any claims, damages, or expenses arising out of your use of the App, your content, your violation of this EULA, or your breach of applicable law.

14. Export and Sanctions Compliance

You represent that you are not located in a country subject to U.S. embargo or designated as “terrorist-supporting,” and that you are not on any U.S. government list of prohibited parties. You agree to comply with all applicable export and sanctions laws.

15. Termination

This EULA remains effective until terminated. You may terminate it by uninstalling the App and ceasing use. We may suspend or terminate access at any time if you breach this EULA, violate the law, or if we cease offering the App. Sections that naturally survive termination will remain in effect.

16. Platform-Specific Terms

App Store (iOS and iPadOS)

• This EULA is between you and the Developer only; Apple is not responsible for the App.
• Your use is limited to Apple-branded devices you own or control, as permitted by the Apple Standard EULA.
• Apple has no obligation to provide maintenance, support, or warranty services for the App.
• We are responsible for addressing any claims related to the App or your possession and use of it.
• In case of third-party IP claims, we will handle the investigation, defense, and settlement.
• Apple and its subsidiaries are third-party beneficiaries of this EULA and may enforce it against you.

Google Play (Android)

• This EULA is solely between you and the Developer; Google is not a party to it.
• Your use of the App is subject to then-current Google Play Terms of Service and policies.
• Google has no obligation to provide maintenance or support for the App.
• Billing, subscriptions, refunds, and cancellations are managed through Google Play, subject to its policies.
• Google and its subsidiaries are third-party beneficiaries of this EULA and may enforce it for copies obtained via Google Play.

17. Governing Law and Dispute Resolution

Unless otherwise required by the consumer protection laws of your country or by the Apple Standard EULA, this agreement is governed by the laws of your country or state of residence, and you agree to submit to the non-exclusive jurisdiction of its courts. Nothing in this section limits your statutory consumer rights.

18. Severability, Entire Agreement, and Assignment

If any provision is found unenforceable, the remaining provisions remain in effect. This EULA is the entire agreement between you and the Developer regarding the App and supersedes prior agreements. You may not assign this EULA without our consent. Our failure to enforce any term is not a waiver.

19. Changes to Services and Availability

We may add, remove, or modify features or discontinue the App entirely at any time. We will not be liable for any modification, suspension, or discontinuation of the App.

20. Contact

Questions about this EULA or the App can be sent to phamcham.dev@gmail.com. You may also use the contact options provided in the applicable App Store listing or any in-app support channel.