Terms of Service

Effective Date: April 23, 2025

Welcome to LinguaLeaf! By downloading, installing, or using the LinguaLeaf app, you agree to be bound by the following Terms of Service ("Terms"). Please read them carefully before using the app.

1. About LinguaLeaf

LinguaLeaf is a mobile application designed to help users improve their English through interactive stories, vocabulary tracking, and a personalized chat experience. LinguaLeaf is intended for educational use only.

2. Internet Connectivity

LinguaLeaf requires an active internet connection to function. Core features (including story generation, vocabulary suggestions, and the chat feature) rely on real-time access to cloud-based services. The app does not offer offline capabilities at this time.

3. Use of AI Services

LinguaLeaf uses OpenAI's API to power generative features such as:

  • Story generation based on selected difficulty level
  • Vocabulary explanations and suggestions
  • A conversational chat function for language practice

While user inputs are processed by OpenAI to provide these features, LinguaLeaf does not share personally identifiable information (PII) with OpenAI. The data sent is anonymized and used only for generating content within the app. OpenAI does not use this data for model training or long-term storage.

4. User Responsibilities

By using LinguaLeaf, you agree to:

  • Use the app only for lawful and educational purposes
  • Avoid inputting sensitive personal data into the chat or story fields
  • Refrain from reverse-engineering, copying, or modifying any part of the app
  • Not use the app in any way that may harm, disrupt, or exploit its services

Violations of these terms may result in suspension or termination of access to the app.

5. Intellectual Property

All content provided within LinguaLeaf, whether generated by the AI or created by the app developers, is the property of LinguaLeaf or its licensors. Users may not reproduce or distribute app content for commercial purposes without prior written permission.

6. Limitation of Liability

LinguaLeaf is provided "as is" and "as available." We do not guarantee uninterrupted access or that the service will be error-free. In no event shall LinguaLeaf, its developers, or affiliates be liable for any indirect or consequential damages resulting from use of the app.

7. Changes to These Terms

We may update these Terms from time to time. Changes will be posted within the app and the "Effective Date" above will be updated. Your continued use of LinguaLeaf after any changes constitutes your acceptance of the revised Terms.

8. Contact

If you have any questions, concerns, or feedback about these Terms, please contact us at: contact@lingualeaf.org