NetStop Firewall is a free utility application developed by Pastel Studios Ltd for Android devices. This one-click firewall application enables users to stop all network traffic with a single tap. It is a simple and easy-to-use tool that anyone can use to protect their device from unwanted network traffic.
To block all network traffic, users just need to press the green ON button, and the VPN service will start. To revert to normal network traffic, simply press the red OFF button. NetStop Firewall utilizes a standard Android VPN service that requires user approval before any actual network traffic is dropped.
This firewall application does not tamper with security settings or personal data, and will not cause any extra charges to the user's usual data traffic bill at the end of the month. The app contains ads, but none are displayed while NetStop Firewall is ON, and no ads of any type are displayed inside the application itself. The only time one may encounter ads is at the application finish (back button).