Sentinel Den – iOS Security Audit SDK

An on-device iOS security toolkit that audits apps for vulnerabilities and recommends specific SDKs to fix them. Target users are iOS developers who need fast, automated security scanning without backend dependencies.

Mobile app security requirements are tightening fast, driven by Apple's expanding privacy mandates, the EU's Cyber Resilience Act, and enterprise procurement teams increasingly demanding SOC 2 and OWASP compliance from vendors. MobSF is the closest substitute — it's open-source and capable, but requires server infrastructure and manual setup, leaving a real gap for something frictionless and on-device. The $2k–10k/mo revenue band is plausible if sold as a per-seat or per-app license to indie and small-studio iOS developers, though it requires either volume or a handful of enterprise buyers, and enterprise sales cycles are slow for a four-person team. The biggest risk is Apple itself — App Store guidelines already restrict certain runtime introspection capabilities, and an SDK that probes its host app for vulnerabilities could hit review rejections or policy changes that gut the core feature set overnight.