Terms of Service

These Terms of Service (“Terms”) govern your use of the HELOS mobile application (“the App”), operated by SD Group, based in Greece. By downloading or using the App, you agree to these Terms.

1. Description of Service

HELOS is a word-guessing game designed for vocabulary learning. The App provides:

• A Wordle-style word guessing game with Word of the Day and difficulty modes
• Vocabulary lists with translations in German, Spanish, and French
• Quiz mode with spaced repetition for vocabulary practice
• Statistics, streaks, and achievement tracking

2. Acceptance of Terms

By using the App, you agree to be bound by these Terms and our Privacy Policy. If you do not agree, do not use the App.

3. User Eligibility

The App is intended for users aged 16 and older. By using the App, you represent that you meet this age requirement.

4. License

We grant you a limited, non-exclusive, non-transferable, revocable license to use the App for personal, non-commercial purposes, subject to these Terms.

5. In-App Purchases

The App offers a one-time in-app purchase to remove advertisements. All purchases are processed through the Google Play Store or Apple App Store and are subject to their respective terms.

You may restore previous purchases at any time through the Settings screen. Refund requests must be directed to the store where the purchase was made.

6. Advertisements and Consent

The free version of the App displays advertisements provided by Google AdMob. Before any advertising data is collected, we will ask for your consent in accordance with the EU General Data Protection Regulation (GDPR) and the IAB Transparency & Consent Framework (TCF 2.2).

You may choose to:

• Accept personalized advertisements
• Accept non-personalized advertisements only
• Reject all advertising data processing

You can change your preference at any time via Settings > Manage Ad Preferences. If you reject all ad tracking, contextual advertisements may still be displayed.

You may remove all advertisements by purchasing the ad-free upgrade.

7. Intellectual Property

All content in the App, including but not limited to text, graphics, icons, sounds, and software, is the property of SD Group or its licensors and is protected by applicable intellectual property laws. Word definitions and translations are provided for educational purposes.

8. User Data and Privacy

All game data is stored locally on your device. We do not maintain user accounts or cloud storage. You are responsible for your device and the data stored on it.

For full details on how data is collected, used, and protected, please see our Privacy Policy.

9. Prohibited Use

You agree not to:

• Reverse engineer, decompile, or disassemble the App
• Use the App for any unlawful purpose
• Attempt to interfere with the App's functionality
• Redistribute or republish the App's content

10. Disclaimer of Warranties

The App is provided “as is” and “as available” without warranties of any kind, either express or implied. We do not warrant that the App will be uninterrupted, error-free, or free of harmful components.

11. Limitation of Liability

To the maximum extent permitted by applicable law, SD Group shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the App.

12. Governing Law

These Terms are governed by the laws of Greece. Any disputes shall be subject to the exclusive jurisdiction of the courts of Greece. This does not affect your statutory rights under EU consumer protection law.

13. Changes to Terms

We reserve the right to modify these Terms at any time. Changes will be reflected in the “Last Updated” date. For material changes, we will notify you through the App. Continued use of the App after changes constitutes acceptance.

14. Termination

We may terminate or suspend your access to the App at any time, without notice, for conduct that we believe violates these Terms or is harmful to other users or the App.

15. Contact Us

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

SD Group
Email: helos@sd-group.gr
Location: Greece