NetGuard - No-Route Firewall - Security is not in vain. With this motto, people install various antivirus software on their phones. But the question is, do they really work? It should be noted here that there is no better security than owning a phone. And with this app you will ideally help for that. Not only can you protect your phone, but you can also restrict access to the Internet. The limitation is that you choose to constantly pump or update applications and decide what and where to download them. With this simple task, your device will not be able to send data to the source.