Section 1:

TLS Tunnel is a free VPN that aims to cross barriers imposed by internet providers and governments, and to guarantee privacy, freedom and anonymity to users. It uses a proprietary protocol called TLSVPN, which is based on TLS 1.3 (and TLS 1.2 optionally) and is verified at the time of connection. No registration or payment is required to use it.

Section 2:

Official servers allow the passage of any IPv4 protocol, while SSH connections of private servers only allow the passage of TCP. UDP will only be possible on private servers if the server is running any UDP Gateway. Additionally, users connected to the same server can communicate with each other through the generated IP.

Section 3:

TLS Tunnel is completely free, but users can pay for access to third party servers if they don't have their own. TLS Tunnel is not responsible for private servers, so any issues should be directed to the server owner.