是给那些没有任何网络技术基础的用户设计的一款“傻瓜”应用层 工具，用户只需添加一下要禁止入网的应用程序即可继续安心上网，就像她的名字一样，“ ”很安静，你不用担心她会弹出什么“已阻挡xxx程序运行”等之类的警告窗口，也不需要你去配置什么参数，无声，无感，纯后台运行。
[Radio Silence 在官网售价9美元，约合人民币54元]
Radio Silence for Mac 2.0 介绍
Radio Silence is an outbound application firewall that lets you block Internet access from individual apps.
- Radio Silence respects your concentration. That is why it will never interrupt you with pop-up windows or alerts.
- Once Radio Silence is installed, you can forget all about it. It is always on and needs no attention from you.
Tiny and Fast:
- Radio Silence weighs next to nothing. It doesn't waste any time or resources, which also makes it blazingly fast.
Usable by Anyone:
- You don't have to be a network expert to use Radio Silence. It takes care of all the technical details for you.
- Version 2.0: Release notes were unavailable when this listing was updated.