Independent: Yes, not a company.
E2E encryption: This feature is present.
Open source : This is the approach used.
Metadata : No, metadata is not collected.
IP logs: No, these logs are not kept.
Security: Regular security audits.
Onion routing: protect user anonymity.
Destructing messages: Yes, self-destruct.
Cloud backups: No, cloud backups.
Information to register: No information.