Sqreen from Datadog

Sqreen, now from Datadog (acquired February 2021) is a tool to protect, observe and test applications, APIs and microservices. As opposed to pattern-based approaches, Sqreen analyses in-app execution in real time in order to deliver more robust security without compromising performance. This is so as to enable security owners to extend protection and visibility across their entire application portfolio without requiring on-going maintenance and tuning.

Sqreen from Datadog starts at $500.