Rethink DNS + Firewall is the easiest way to monitor app activity, circumvent Internet censorship, block ads and trackers on your Android device.

Android Firewall
Prevent apps from connecting to the Internet. A firewall can block any app connecting to the Internet over Wi-Fi or Mobile data. Since most forms of surveillance require the data to be sent over the network to a server, firewalling them effectively mitigates that threat (File Managers, Alarm Clock, Calculator are few such examples of apps that do not require any Internet access to function).

Content Blocking
Block ads, trackers, malware, and more. Messaging apps, for instance, can't be firewalled altogether, but can be, instead, blocked from accessing certain server endpoints of known ad-networks and trackers.

Anti-Censorship
Circumvent the most common way the Internet is censored. The app encrypts your requests sent to Domain Name System (DNS) resolver run by us with presence in 200+ locations worldwide. DNS resolvers are the address book of the Internet

Monitoring
Keep tabs on incoming and outgoing Internet traffic. The Rethink DNS + Firewall for Android keeps a log of connections every app makes and tracks its data use. Automated reports flag previously unknown or suspicious connections, and reveal the extent of surveillance.