Terms of Service

Version 1.3 | Effective: March 12, 2026

dit•DAHs is an educational tool for learning and practicing International Morse Code (CW). By using the App, you agree to the following terms.

1. Educational Purpose

The App is for personal learning only. It does not replace official study materials or licensing requirements. We do not guarantee exam passage or proficiency certification.

2. Amateur Radio Licensing

Using the App does not grant any radio operating privileges. You must obtain the appropriate license from your national authority (e.g., FCC in the United States).

3. ⚠️ Audio Safety

IMPORTANT: dit•DAHs produces audio tones for training.

Start with LOW volume and adjust to a comfortable level
Use headphones at MODERATE volumes
Take 10-minute breaks every hour
Stop if you experience discomfort, ringing, or fatigue

High-volume audio can cause permanent hearing damage. We are not liable for hearing injury from improper use.

If you have hearing conditions such as tinnitus, hearing loss, or use hearing aids, consult a healthcare professional before use.

4. User Profiles

You may create a local user profile (preferred name, call sign). Profiles are stored only on your device and are not transmitted or synced to our servers.

5. Children Under 13

dit•DAHs is not directed toward children under 13. However, because we do not collect personal data, the app may be used by minors under adult supervision and with parental consent.

For Scout troops and youth programs: Adult leaders must obtain parental consent and comply with youth protection policies.

6. Free and Paid Features

The App offers free (Fundamentals) and paid tiers (Advanced, Instructor Edition). Features and pricing may change over time.

Subscriptions (If/When Available): Instructor Edition subscriptions (if introduced) will renew automatically unless canceled through the App Store or Google Play.

Payments made through Apple App Store or Google Play are subject to those platforms' billing terms, refund policies, and dispute resolution processes. We do not control or have access to these platform payment systems.

For subscription management, cancellations, or refunds, contact Apple or Google directly.

7. Reference Materials & Copyright

The CW Field Cards, reference charts, and educational content provided in dit•DAHs are for personal study and reference only.

These materials are protected by copyright and may not be:

Reproduced or copied
Distributed or shared publicly
Used for commercial purposes

Personal use within the dit•DAHs application is encouraged.

By using dit•DAHs, you agree to respect these restrictions.

8. Hardware Integration

dit•DAHs supports external paddles/keys via USB adapters (e.g., vBand). We are not responsible for compatibility issues or hardware defects.

9. No Warranty

USE AT YOUR OWN RISK.

The App is provided on an "AS IS" and "AS AVAILABLE" basis without warranties of any kind, whether express or implied.

TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES INCLUDING:

Warranties of merchantability
Warranties of fitness for a particular purpose
Warranties of non-infringement
Warranties of accuracy, reliability, or availability
Warranties that the App will be uninterrupted, error-free, or secure

We do not guarantee:

Exam passage or proficiency certification
Compatibility with all devices or browsers
Preservation of user data or settings
Continuous availability or specific performance levels

Any reliance on the App is at your sole risk.

10. Limitation of Liability

We are not liable for any damages arising from use of the App, including but not limited to hearing injury, exam failure, or data loss.

Force Majeure:

We are not liable for failure or delay in performance caused by events beyond our reasonable control, including:

Internet outages or network disruptions
Natural disasters, pandemics, or acts of war
Government actions or regulatory changes
Third-party service failures (hosting, analytics)

11. User Conduct

You agree not to:

Reverse engineer, decompile, or hack the App
Use the App for any unlawful purpose
Redistribute or resell the App or its content
Interfere with the App's operation or security

12. Indemnification

You agree to indemnify, defend, and hold harmless Line & Signal Design Co. LLC, its officers, directors, employees, and agents from and against any and all claims, damages, obligations, losses, liabilities, costs, or expenses (including reasonable attorneys' fees) arising from:

Your use or misuse of the App
Your violation of these Terms
Your violation of any third-party rights, including intellectual property or privacy rights
Any unlawful activities conducted using the App
Any false or misleading information you provide

This indemnification obligation survives termination of these Terms.

13. Intellectual Property

dit•DAHs, the dit•DAHs logo, Practice Cadence™, and all intellectual property including software, source code, algorithms, audio content, training methodologies, user interface designs, documentation, and educational materials are owned by Line & Signal Design Co. LLC.

Unauthorized use, copying, modification, or distribution is prohibited.

14. Changes to These Terms

We may update these Terms from time to time. Changes will be posted here with an updated effective date. Continued use of the App indicates acceptance.

15. Dispute Resolution & Arbitration

Arbitration Agreement:

Any dispute, claim, or controversy arising out of or relating to these Terms or the App shall be resolved through binding arbitration rather than in court, except that you may assert claims in small claims court if they qualify.

The arbitration shall be conducted in Charleston County, South Carolina under the Commercial Arbitration Rules of the American Arbitration Association (AAA).

Class Action Waiver:

You agree to bring claims against us only in your individual capacity and not as part of any class action, collective action, or representative proceeding. You waive the right to participate in class actions.

Exception:

Nothing in this section waives your right to file a complaint with the Federal Trade Commission or other regulatory agencies.

Governing Law:

These Terms are governed by the laws of the State of South Carolina, excluding conflict of law principles.

16. Export Compliance

You agree to comply with all applicable export control laws and regulations, including the U.S. Export Administration Regulations.

You represent that you are not located in a country subject to U.S. embargo and are not on any U.S. government list of prohibited parties.

17. Contact

Questions about these Terms? Contact support@ditdahs.com.