Privacy Policy

Last updated: September 2026

This Privacy Policy explains how RehaLine Group ("we", "us") processes personal data of visitors of the website 4stim.com (the "Website").

1. What data we collect

When you use the contact form on the Website or write to our Telegram assistant, we may collect the data you provide: your name, organization, country, email address, Telegram or WhatsApp contact, and the content of your message, including information about a medical condition that you choose to share with us. We also collect standard technical data (IP address, browser type, pages visited) through web analytics tools.

2. Why we process it

We process your data only to respond to your enquiry, to arrange a consultation or partnership discussion that you have requested, and to understand how the Website is used so that we can improve it. We do not sell personal data and do not use it for third-party advertising.

3. Legal basis and consent

By submitting the contact form or writing to our Telegram assistant you consent to the processing of the data you provide for the purposes above. Health-related information is processed solely on the basis of your explicit consent and only to the extent needed to assess whether we can help in your case.

4. Storage and security

Enquiries are received by email and stored in our internal records with access limited to the staff who handle them. Data is kept for as long as needed to handle your enquiry and any resulting cooperation, and no longer than required by applicable law.

5. Third-party services

The Website may use web analytics services (such as Google Analytics or Yandex Metrica) that set cookies to measure traffic. Communication through Telegram is subject to Telegram's own privacy policy.

6. Your rights

You may request access to, correction or deletion of your personal data, or withdraw your consent at any time by writing to info@4stim.com. We will respond within a reasonable time.

7. Contact

Questions about this Policy: info@4stim.com.

Contact Us

We work with rehabilitation clinics and distributors worldwide, and with patients and families in countries where the device is approved. Choose the option that fits you.

Learn more: What is translingual neurostimulation · TLNS vs PoNS · PoNS device cost · Treatment outside the US · Conditions: cerebral palsy, stroke, brain injury, multiple sclerosis, Parkinson's disease, balance disorders · Scientific publications · Partnership program for clinics

For clinics and distributors

Equipment, treatment methodology and staff training delivered as a ready-to-run rehabilitation program. Entry through a 90-day clinical pilot.

Partnership program Write on Telegram

For patients and families

Our AI assistant on Telegram answers questions about the technology and collects the details of your case. A specialist then reviews them and contacts you to arrange an online consultation.

Ask on Telegram Send a message

Send us a message

We reply by email or Telegram within two business days.

By clicking "Send", you agree to the processing of your personal data.

The 4STIM TLNS device is not cleared by the U.S. FDA and is not offered for sale in the United States. It is available in the countries listed in the Regulatory Approvals section. PoNS® and PoNS Therapy® are trademarks of their respective owner; 4STIM is not affiliated with Bioness Medical, Helius Medical Technologies or their partners. This website is for informational purposes and does not replace medical advice.