Approov Runtime Application Self Protection vs @fastify/helmet: Side-by-Side Comparison (2026)

Approov Runtime Application Self Protection: RASP solution securing mobile apps and APIs across Android, iOS, and HarmonyOS at runtime. built by Approov. Core capabilities include App attestation to verify app authenticity and device integrity at runtime, Real-time threat intelligence on deployed apps and their operating environments, Dynamic certificate pinning with over-the-air updates to block MitM attacks..

@fastify/helmet: A Fastify plugin that implements HTTP security headers through a wrapper around the helmet library to protect web applications from common vulnerabilities..

Both serve the Runtime Application Self-Protection market but differ in approach, feature depth, and target audience.

Approov Runtime Application Self Protection is developed by Approov. @fastify/helmet is open-source with 453 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Approov Runtime Application Self Protection and @fastify/helmet serve similar Runtime Application Self-Protection use cases: both are Runtime Application Self-Protection tools, both cover Web Security. Key differences: Approov Runtime Application Self Protection is Commercial while @fastify/helmet is Free, @fastify/helmet is open-source. Review the feature comparison above to determine which fits your requirements.