rethinkdns
3B+ Android users deserve access to a safer and open Internet. RethinkDNS is a private, secure, and fast DNS resolver with custom rules, blocklists, and analytics that lets you block websites temporarily with time-based rules, or permanently through 190+ pre-defined blocklists; analyse DNS requests in real-time, read through aggregated reports. RethinkDNS is highly-available with servers in over 200+ locations across the globe. RethinkDNS+Firewall, a companion app for Android, helps evade Internet censorship as enforced in most countries, and comes with bundled with a firewall that lets you monitor and control Internet access to apps installed on your device.