Last updated: March 2026
echo.11 is a wellness application created by Shira Sarid, Israel. We build science-backed sound therapy tools for mental wellbeing.
echo.11 does not require registration, login, or any personal information. The app runs entirely in your browser.
We do not collect:
Your preferences (dark/light mode, language, volume) are stored locally in your browser only. This data never leaves your device and is never transmitted to any server.
All audio is generated locally in your browser using the Web Audio API. No audio is recorded, transmitted, or stored.
echo.11 is not directed at children under 13. We do not knowingly collect data from children.
Since we collect no personal data, there is nothing to access, correct, or delete. For any questions, contact us at [email protected]
Last updated: March 2026 · Per Israeli Law Amendment 35
echo.11 is committed to making our digital service accessible to everyone, including people with disabilities, in accordance with the Equal Rights for People with Disabilities Law (Service Accessibility Adjustments), 5773-2013.
Found an accessibility barrier? We want to hear from you. We aim to respond within 5 business days.
This statement is published in accordance with Amendment 35 to the Equal Rights for People with Disabilities Law, Israel. Israeli law requires digital accessibility compliance for public-facing digital services.
Last updated: March 2026
By using echo.11, you agree to these terms. If you do not agree, please do not use the service.
echo.11 is a wellness application providing binaural beats, solfeggio frequencies, and sound therapy tools for general relaxation and wellbeing. The service is provided free of charge via the web.
echo.11 is NOT a medical device and does NOT provide medical advice. The frequencies and content provided are for general wellness and relaxation purposes only. echo.11 is not a substitute for professional medical or psychological treatment. If you have a medical condition, epilepsy, hearing disorder, or mental health condition, consult a healthcare professional before use. Do not use echo.11 while driving or operating machinery.
Binaural beats require headphones. They are not recommended for:
All content, design, frequencies, and branding of echo.11 are the intellectual property of Shira Sarid / echo.11. The echo.11 name, logo (‖ ‖), and "astronaut" visual identity are protected. You may not reproduce, distribute, or create derivative works without written permission.
echo.11 is provided "as is" without warranties of any kind. We are not liable for any direct, indirect, or consequential damages arising from use of the service.
These terms are governed by the laws of the State of Israel. Any disputes shall be resolved in the courts of Tel Aviv, Israel.