Radio Silence
Monitor & block apps that make unwanted network connections.
Radio Silence launched on April 23, 2016 with 259 votes, #74 of 4,301 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 10 years on.
In plain words
Radio Silence is a Mac firewall that monitors and blocks individual apps from accessing the internet. It displays all network connections in real time, allowing users to block misbehaving apps with one click. The tool runs invisibly in the background without requiring technical expertise, making it suitable for any Mac user concerned about unwanted network activity. A 30-day money-back guarantee is offered.
written from the facts on this page · September 2026
From the sources
Radio Silence is a user-friendly firewall that blocks internet access from individual apps on your Mac
Radio Silence works with all kinds of Macs, and you don't have to be a network expert. The firewall is invisible and always active. You don't have to keep any windows open. Safe 30-day guarantee: If you’re not 100% happy, you get your money back. No questions asked. “Quintessential Mac” is a perfect description of Radio Silence. Radio Silence's network monitor shows you every network connection in real time. If you find a misbehaving app, you can block it with a single click. Safe 30-day guarantee: If you’re not 100% happy, you get your money back. No questions asked. A lot of apps secretly check in with the mothership behind the scenes without asking your permission. If you'd…from radiosilenceapp.com
Does a similar job
all alternatives →- MNMy network connection monitor for Mac2011 · radiosilenceapp.com · ▲146
Radio Silence is a user-friendly firewall that blocks internet access from individual apps on your Mac
- MUMy user-friendly outbound firewall for Mac2011 · radiosilenceapp.com · ▲77
Radio Silence is a user-friendly firewall that blocks internet access from individual apps on your Mac
- RERadioSilence. Easy to Use OS X Firewall2016 · radiosilenceapp.com · ▲32
Radio Silence is a user-friendly firewall that blocks internet access from individual apps on your Mac
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