Lynis is described as 'Security auditing tool for systems running Linux, macOS, BSD, and other UNIX-based systems. It helps with compliance checking, finding vulnerabilities, and system hardening' and is an app in the Security & Privacy category. There are five alternatives to Lynis for Linux, Mac, Windows and the Web. The best alternative is OpenSCAP, which is both free and Open Source. Other great apps like Lynis are Tiger (Free, Open Source), CollectCore (Paid), SecPod Saner Personal (Free Personal) and UpGuard (Paid).