Radio Silence Alternatives

GlassWire

Visualize network activity in detail, get notified when new apps access the network, look out for malware, and block badly behaving apps.

Features:

• Block apps
• Network activity
• Built-in Firewall
• Graphical component
• Intuitive Interface
• Network Monitoring
• Network Tools
• Push subscriptions
• Security & Privacy

Little Snitch

Little Snitch is a firewall application that monitors and controls outbound internet traffic.

ZoneAlarm Firewall

ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic. By detecting and preventing intrusions...

Hands Off!

Hands Off! is an application to monitor and control the access of applications to your network and disks. Being able to monitor the normally unnoticeable activities...

OpenSnitch

OpenSnitch is a GNU/Linux port of the Little Snitch application firewall.

Features:

• Application Firewall
• Network Monitoring

IceFloor

IceFloor is the first OS X free graphic frontend for PF. Configure the PF firewall in a few clicks using a very simple interface and a step by step in-app configuration...

TripMode

Block internet connection for apps.

Features:

• Network Monitoring
• Networking

SpyShelter

SpyShelter is an effective and easy-to-use security application that helps you to protect your system against known and unknown custom compiled malware.

Stronghold

Stronghold is the easiest way to securely configure your Mac. Designed for macOS Sierra and High Sierra. Not yet tested on macOS Mojave, but I'm working on updating...

Features:

• Security & Privacy
• Security focused