Terms of Service

Last Updated: March 11, 2025

1. Acceptance of Terms

By downloading, installing, or using the Device Optical Aid (DOA) application ("the App"), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the App.

2. Description of Service

DOA is a mobile application designed to assist users with visual impairments by providing:

• Visual correction features for myopia, hyperopia, and astigmatism
• Built-in media viewer for videos, PDFs, ebooks, and manga
• Integrated web browser with accessibility features
• Color blindness testing and correction tools

3. Medical Disclaimer

IMPORTANT: DOA is not a medical device and is not intended to replace prescribed correction lenses or professional medical treatment. The App should not be used as a substitute for regular eye examinations or professional medical advice. If you experience any vision-related issues, please consult an eye care professional.

4. User Registration and Account Security

To use certain features of the App, you may need to create an account. You are responsible for:

• Providing accurate registration information
• Maintaining the security of your account credentials
• All activities that occur under your account
• Notifying us immediately of any unauthorized use

5. Privacy and Data Collection

Your use of the App is also governed by our Privacy Policy, which explains how we collect, use, and protect your personal information. By using the App, you consent to the data practices described in the Privacy Policy.

6. User Content and Conduct

When using the App, you agree to:

• Only upload content that you have the right to use
• Not use the App for any illegal purposes
• Not attempt to circumvent any security features
• Not distribute harmful software or content

7. Intellectual Property Rights

The App and its original content, features, and functionality are owned by DOA and are protected by international copyright, trademark, and other intellectual property laws.

8. Premium Features and Payments

Some features of the App may require a premium subscription. By purchasing a subscription, you agree to:

• Pay all fees and applicable taxes
• Provide accurate billing information
• The automatic renewal terms specified at purchase

9. Termination

We reserve the right to terminate or suspend your account and access to the App for violations of these terms or for any other reason at our sole discretion.

10. Changes to Terms

We may modify these terms at any time. Continued use of the App after changes constitutes acceptance of the modified terms.

11. Limitation of Liability

To the maximum extent permitted by law, DOA shall not be liable for any indirect, incidental, special, consequential, or punitive damages resulting from your use or inability to use the App.

12. Contact Information

For questions about these Terms of Service, please contact us at:

Email: support@doa-app.com

Website: https://doa-app-web.vercel.app

13. Governing Law

These terms shall be governed by and construed in accordance with the laws of your jurisdiction, without regard to its conflict of law provisions.

14. Anti-Tampering Technology Notice

This App uses security technologies to protect user data and comply with app store requirements. The App may not function properly on modified, rooted, or jailbroken devices. These measures are implemented to ensure service integrity and platform compliance.

15. Acknowledgment

By using DOA, you acknowledge that you have read, understood, and agree to be bound by these Terms of Service and our Privacy Policy.