Nmap
Description: Nmap is an open source network discovery and security auditing tool. It is used to discover hosts and services on a network and to detect potential vulnerabilities.
Type: software
Pricing: Free
Posthook
Description: Posthook is an email automation and newsletter platform that allows users to create and send automated email campaigns. It has a drag-and-drop editor to build emails, segment contacts, and track campaign analytics.
Type: software