About
Radio Silence is a firewall and network monitor for Mac that lets you block any app from phoning home. It works with all kinds of Macs, including both Apple Silicon and Intel, and runs on macOS 10.15 or newer, including macOS Golden Gate. You don't need to be a network expert to use it, and installation takes less than a minute.
Radio Silence shows you every network connection in real time, so you can see which apps are connecting and block a misbehaving app with a single click. It also reveals hidden helper apps, invisible background processes, daemons, and XPC services that apps use to make connections. Child processes of blocked apps are blocked too, and blocked apps can't access the network but can still talk to local processes.
The firewall is lightweight, invisible, and always active, with no windows to keep open, no pop-ups, no clutter in your screen or menu bar, and no effect on your Mac's performance. Radio Silence is available as a free trial or for $9, and it comes with a 30-day money-back guarantee.
What's new
All release notesHomebrew cask radio-silence 3.4 (sha256 5c21f1da03100e6b024f244fe453f7f6a844ab1137acbc755577ed39e707352c).