AppCheck Infrastructure Scanner vs Nipper-ng: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
AppCheck Infrastructure Scanner is a commercial security scanning tool by AppCheck. Nipper-ng is a free security scanning tool. Compare features, ratings, integrations, and community reviews side by side to find the best security scanning fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
AppCheck Infrastructure Scanner
SMBs and mid-market teams without dedicated vulnerability management staff should pick AppCheck Infrastructure Scanner for its unlimited scanning and users, removing seat-based licensing friction that kills adoption. The proprietary VulnFeed database detects over 20,000 products and tens of thousands of CVEs with authenticated scanning that catches what surface-level tools miss, and RBAC plus role-based reporting let security generalists delegate tasks without handing out admin access. Skip this if your primary need is web application scanning; the infrastructure focus is strong, but the web scanning is secondary to the core network and data center mission.
Network teams auditing Cisco, Juniper, and Palo Alto devices will find Nipper-ng's value in its ability to parse proprietary CLI outputs and flag configuration drift that automated scanners typically miss. The tool has been stable enough to accumulate 74 GitHub stars with active maintenance, and it handles stateful protocol analysis that generic port scanners skip entirely. Skip this if you need point-and-click UI or vendor support contracts; Nipper-ng is a command-line tool for practitioners who read documentation and can write their own remediation playbooks.
