This is a secure dns and adblocker that has evolved into a great privacy app. Yesterday i noticed it has added support for Wireguard and TOR as well as proxy. The app comes with a customizable firewall. It means you can have secure dns combined with vpn/proxy and firewall in one app.
P.S: I’m not the developer.
If we want to have the bigger picture we’ll also need to read this about rethinkDns :
Is this a free service? On-device firewall is free. The in-the-cloud Rethink DNS content-blocking resolver has both free (public beta) and paid tiers (private beta). Currently, pricing isn't implemented and so the private beta is essentially also free till then.
From faq : https://rethinkdns.com/faq Not here about arguing, people need to eat and live under a roof ofc, even in foss communities, but I think people need to know about it before installing & be dependant to its (for the moment free) features.