🤝 1. Acceptance of Terms
By downloading, installing, or using the EchoListen application ("the App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, you may not access or use the App.
EchoListen is provided to help users practice language pronunciation and feedback loops. These Terms apply to all users, including guest users and registered users.
👤 2. Accounts and Eligibility
You can use certain basic features of the App (such as Solo Mode) as a guest without creating an account. However, to access advanced features (such as Shadowing Mode and Speech Pro Mode), you must register and sign in.
- Account Security: If you create an account via third-party authentication (Google Sign-In), you are responsible for maintaining the confidentiality of your credentials.
- Account Deletion: You may request the deletion of your account and all associated data at any time via the App's account settings.
⚡ 3. Usage Rules and AI Credits
Advanced modes in EchoListen rely on artificial intelligence (AI) services. To prevent abuse and manage costs, the App uses a credit system:
- Free Tier Credits: Free users receive a limited allowance of daily credits, which automatically resets each day. Daily credit allowances may vary by country or region.
- Credit Limits: We reserve the right to modify the daily credit limits at any time via Cloud Remote Config updates.
- Abuse Prevention: You agree not to use bots, scrapers, or other automated mechanisms to generate voice synthesis requests or artificially consume credits.
💳 4. Pro Subscriptions and Billing
You may purchase a Pro subscription to receive a higher daily credit allowance and additional features.
- Billing Processors: All purchases, subscriptions, and transactions are processed securely through App Store billing services (on iOS), Google Play billing services (on Android), or other third-party platform providers.
- Cancellations and Refunds: Subscription cancellations and refund requests must be managed through the respective platform app store account (e.g. Apple App Store or Google Play Store) according to their terms.
🎙️ 5. Voice Processing & AI Features
Your privacy is extremely important to us. EchoListen processes audio differently depending on the selected practice mode:
- Solo Echo Mode: All audio recordings and playback are processed entirely locally on your device. No voice data or recordings are uploaded, stored, or transmitted to any servers.
- Advanced AI Modes (Shadowing & Speech Pro): To provide real-time similarity scoring, corrective modeling, and daily Tutor Reports, your voice recordings (and target scripts) are transmitted securely via HTTPS to third-party artificial intelligence services (specifically Google Gemini APIs).
- Stateless Processing: All uploaded voice recordings are processed transiently in-memory by third-party APIs for evaluation and are not stored persistently or saved on our servers or by third-party APIs after processing.
- Local Practice History: If you choose to save recordings to your Practice History, the audio files are saved locally on your device's browser database (IndexedDB) and remain entirely on your own device.
⚠️ 6. Disclaimer of Warranties & AI Feedback
THE APP AND SERVICES ARE 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, SECURE, OR ERROR-FREE.
WE EXPRESSLY DISCLAIM ANY WARRANTIES REGARDING THE ACCURACY, CORRECTNESS, COMPLETENESS, OR RELIABILITY OF THE AI-GENERATED INSIGHTS, TUTOR CORRECTIONS, OR VOICE SYNTHESIS SCORES.
⚖️ 7. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, ECHOLISTEN AND ITS CREATORS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF OR INABILITY TO USE THE APP.
📝 8. Changes to These Terms
We reserve the right to modify these Terms at any time. When we make updates, the "Last updated" date at the top will be updated. Your continued use of the App following changes constitutes acceptance of the new Terms.
✉️ 9. Contact Us
If you have any questions, complaints, or feedback regarding these Terms, please reach out: