GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
Evercontact - Your contacts always up to date and automatically with Evercontact.
Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.
CONTACTBOX - CONTACTBOX combines the simplicity of an address book with effective functions of a CRM system.
Radio Silence - Radio Silence is a network monitor and firewall for the macOS. The software stops apps from making network connections. The firewall runs in the background and does not require an open window.
Pobuca Connect - Connect with your contacts.