Apps phoning home?
Not on your watch.

Radio Silence lets you block any application from accessing the internet.

It is designed for people who are not interested in configuring and managing traditional firewalls. Radio Silence supports both Mac OS X Lion and Snow Leopard and takes less than a minute to install.

Buy now for only $9 Download (Includes free 24-hour trial)

Radio Silence has a risk-free 30-day guarantee. If you're not absolutely happy, you'll get your money back, no questions asked.

The Radio Silence firewall blocks outgoing connections

What is best in Radio Silence?

100% Annoyance-free

Radio Silence respects your concentration. That is why it will never interrupt you with pop-up windows or alerts.

Zero Maintenance

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.

What do others think?

Lifehacker

“A lot of apps secretly check in with the mothership behind the scenes without asking your permission. If you'd prefer they didn't, Radio Silence can solve your problem hassle-free.”

LogicielMac.com

LogicielMac gave Radio Silence 4.5 stars Editor's rating LogicielMac gave Radio Silence 4.5 stars Average user rating

Geekosity.org

“Radio Silence does the same job as Little Snitch, but hides the tricky details in the background and concentrates on the absolute basics of policing your network traffic.”

Love For Tech

“A hassle-free, and cheaper, alternative to its cousin Little Snitch.”