Terms of Use

Last Updated: February 26, 2026

Quick Summary: By using 512Hz.net, you agree to use it responsibly as a professional tool, not for unauthorized purposes. It's free, but comes with no warranties. You're responsible for your own use and clinical decisions.

1. Agreement to Terms

By accessing or using 512Hz.net (the "Service"), you agree to be bound by these Terms of Use ("Terms"). If you do not agree to these Terms, do not use the Service.

These Terms constitute a legally binding agreement between you and 512Hz.net ("we," "us," or "our").

2. Changes to Terms

We reserve the right to modify these Terms at any time. Changes will be effective immediately upon posting to this page with an updated "Last Updated" date.

Your continued use of the Service after changes constitutes acceptance of the modified Terms. We recommend reviewing this page periodically.

3. Description of Service

512Hz.net provides a free, browser-based audiogram calculator and visualization tool designed for healthcare professionals. The Service allows users to:

Plot audiometric data on interactive charts
Calculate Pure Tone Averages (PTA)
Visualize hearing loss patterns
Export audiograms as PNG images
Access educational resources about audiometry

4. Eligibility

By using the Service, you represent and warrant that:

You are at least 18 years of age
You have the legal capacity to enter into these Terms
You will comply with all applicable laws and regulations
For clinical use: You are a qualified healthcare professional licensed/certified to practice in your jurisdiction

5. Acceptable Use

5.1 Permitted Uses

You may use the Service for:

Educational purposes (teaching, learning, research)
Professional reference and calculation
Visualization of audiometric data
Patient communication and education
Creating supplementary documentation

5.2 Prohibited Uses

You may NOT:

Use as primary diagnostic tool: Without certified audiometric equipment
Violate laws: Including HIPAA, GDPR, or other privacy/medical regulations
Circumvent security: Attempt to hack, reverse engineer, or access unauthorized areas
Abuse the service: Automated scraping, DDoS attacks, or excessive requests
Infringe IP rights: Copy, redistribute, or create derivative works without permission
Impersonate: Misrepresent your identity or affiliation
Harm others: Upload malicious code, spam, or harassing content
Commercial redistribution: Sell access to the Service or incorporate it into paid products without permission

6. User Responsibilities

6.1 Data Accuracy

You are solely responsible for:

Accuracy of all data you enter
Verifying calculations independently
Using data from properly calibrated equipment
Ensuring data integrity and quality

6.2 Professional Standards

Healthcare professionals using the Service must:

Maintain appropriate licensure and certifications
Follow applicable professional standards and guidelines
Exercise independent clinical judgment
Not rely solely on this tool for patient care decisions
Comply with scope of practice regulations

6.3 Patient Privacy

You must:

Protect patient confidentiality at all times
Comply with HIPAA (US) and GDPR (EU) as applicable
Obtain necessary patient consents
Minimize entry of personally identifiable information (PII)
Understand that data is stored locally on your device only

7. Intellectual Property Rights

7.1 Our Rights

All content, features, and functionality of the Service, including but not limited to:

Source code, algorithms, and calculations
Design, layout, and user interface
Text, graphics, logos, and images
Compilation and organization of content

...are owned by 512Hz.net and protected by copyright, trademark, and other intellectual property laws.

7.2 Limited License

We grant you a limited, non-exclusive, non-transferable, revocable license to:

Access and use the Service for personal/professional use
Export and save audiograms you create
Print materials for professional purposes

This license does NOT permit:

Copying or redistributing our source code
Creating derivative tools or competing services
Removing copyright notices or attributions
Commercial exploitation without written permission

7.3 User-Generated Content

You retain all rights to audiograms and data you create using the Service. We claim no ownership of your patient data or exported files.

8. Disclaimers and Limitations

8.1 "AS IS" Service

The Service is provided "AS IS" and "AS AVAILABLE" without warranties of any kind, either express or implied, including but not limited to:

Merchantability or fitness for a particular purpose
Accuracy, reliability, or completeness
Uninterrupted or error-free operation
Security or freedom from viruses/malware
Results or outcomes from use of the Service

8.2 Medical Disclaimer

The Service is NOT a medical device and is NOT intended for:

Diagnosis of medical conditions
Treatment planning or recommendations
Replacement of professional audiological evaluation

See our full Medical Disclaimer for details.

8.3 Third-Party Services

We use third-party services (e.g., Google Analytics, Google Fonts) and are not responsible for:

Their availability, security, or privacy practices
Changes to their services or terms
Any damages resulting from their use

9. Limitation of Liability

9.1 No Liability

To the fullest extent permitted by law, 512Hz.net and its creators, officers, employees, and agents shall NOT be liable for any:

Direct damages: Loss of data, revenue, or business
Indirect damages: Consequential, incidental, or special damages
Medical outcomes: Patient injuries, misdiagnoses, or treatment errors
Professional liability: Malpractice claims or license issues
Service interruptions: Downtime, bugs, or technical failures
Third-party actions: Hacking, data breaches, or external attacks

This applies even if we have been advised of the possibility of such damages.

9.2 Maximum Liability

In jurisdictions that do not allow exclusion of liability, our maximum liability shall not exceed $100 USD or the amount you paid to use the Service (which is zero for free users).

9.3 Professional Responsibility

Healthcare professionals are solely responsible for:

All clinical decisions and patient care
Maintaining professional liability insurance
Complying with applicable laws and standards
Any consequences of using the Service in practice

10. Indemnification

You agree to indemnify, defend, and hold harmless 512Hz.net and its affiliates from any claims, damages, losses, liabilities, and expenses (including attorneys' fees) arising from:

Your use or misuse of the Service
Your violation of these Terms
Your violation of any laws or regulations
Your violation of third-party rights
Clinical decisions made using the Service
Patient harm allegedly related to use of the Service

11. Privacy and Data Protection

Our collection and use of personal information is governed by our Privacy Policy, which is incorporated into these Terms by reference.

Key points:

All audiogram data is stored locally on your device
We do not transmit or access patient data
Analytics cookies require your consent (GDPR-compliant)
You can delete your data by clearing browser storage

12. Service Availability

12.1 No Guarantee

We do not guarantee that the Service will:

Be available at all times without interruption
Be error-free or free from bugs
Be compatible with all devices or browsers
Continue to exist indefinitely

12.2 Modifications and Termination

We reserve the right to:

Modify, suspend, or discontinue the Service at any time without notice
Change features, functionality, or calculations
Implement usage limits or access restrictions
Terminate or suspend your access for violations of these Terms

12.3 No Refunds

Since the Service is free, there are no refunds to provide. If we introduce paid features in the future, refund policies will be clearly stated.

13. Geographic Restrictions

The Service is provided from Bulgaria (European Union) and intended for global use. However:

Some features may not be available in all jurisdictions
You are responsible for compliance with local laws
We make no representation that the Service is appropriate or legal in your location
If use is prohibited in your jurisdiction, do not access the Service

14. Export Controls

You agree not to export, re-export, or transfer the Service or any technical data in violation of:

U.S. export control laws and regulations
International arms regulations
Economic sanctions programs

15. Children's Privacy

The Service is not intended for children under 13. We do not knowingly collect data from children.

If you are a parent/guardian and believe your child has used the Service, contact us at 512hz@proton.me.

16. Copyright Infringement

We respect intellectual property rights. If you believe content on our Service infringes your copyright, contact us with:

Description of the copyrighted work
Location of the infringing material
Your contact information
Statement of good faith belief
Statement that information is accurate
Physical or electronic signature

Email: 512hz@proton.me

17. Feedback and Suggestions

If you provide feedback, suggestions, or ideas about the Service:

You grant us a perpetual, royalty-free license to use them
We have no obligation to implement suggestions
We may use ideas without compensation or attribution
Feedback does not create a confidential relationship

18. Severability

If any provision of these Terms is found to be invalid or unenforceable:

That provision shall be modified to the minimum extent necessary to make it valid
All other provisions shall remain in full force and effect
The overall intent of these Terms shall be preserved

19. Waiver

Our failure to enforce any right or provision of these Terms does not constitute a waiver of that right or provision.

No waiver shall be effective unless made in writing and signed by an authorized representative.

20. Assignment

You may not assign or transfer these Terms or your rights/obligations without our written consent.

We may assign these Terms without restriction, including to affiliates or in connection with a merger, acquisition, or sale of assets.

21. Entire Agreement

These Terms, together with our Privacy Policy and Medical Disclaimer, constitute the entire agreement between you and 512Hz.net regarding use of the Service.

These Terms supersede all prior agreements, understandings, and communications (written or oral).

22. Governing Law and Jurisdiction

22.1 Governing Law

These Terms shall be governed by and construed in accordance with the laws of Bulgaria and the European Union, without regard to conflict of law principles.

22.2 Dispute Resolution

Any dispute arising from these Terms or use of the Service shall be resolved as follows:

Informal Resolution: Contact us first to attempt good-faith resolution
Mediation: If informal resolution fails, parties agree to mediation
Arbitration: Binding arbitration in Bulgaria if mediation fails
Litigation: As a last resort, in the courts of Bulgaria

22.3 Class Action Waiver

You agree to resolve disputes individually, not as part of a class action or consolidated proceeding.

23. Force Majeure

We shall not be liable for any failure or delay in performance due to circumstances beyond our reasonable control, including:

Natural disasters (earthquakes, floods, fires)
War, terrorism, civil unrest
Government actions or regulations
Internet or telecommunications failures
Pandemics or public health emergencies
Acts of third parties (cyber attacks, hosting failures)

24. Survival

The following provisions shall survive termination of these Terms:

Intellectual Property Rights (Section 7)
Disclaimers and Limitations (Section 8)
Limitation of Liability (Section 9)
Indemnification (Section 10)
Governing Law and Jurisdiction (Section 22)

25. Contact Information

For questions about these Terms or the Service:

General Inquiries: 512hz@proton.me
Legal/Privacy: 512hz@proton.me
Website: https://512hz.net

26. Acknowledgment

By using 512Hz.net, you acknowledge that:

You have read and understood these Terms
You agree to be bound by these Terms
You have read our Privacy Policy and Medical Disclaimer
You understand the limitations and risks of using the Service
You are qualified to use the Service for your intended purpose

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