NoRoot Firewall App
Protect your device with NoRoot Firewall! NoRoot Firewall is an aptly named app for Android devices that establishes a firewall on devices that have not been rooted. What this essentially means is that you can protect your phone and monitor the data being sent and received, as NoRoot Firewall will constantly check for apps that are trying to download or upload information on your Android device. With simple interface and tons of options, this app is a definite must-have.