codebeat - Automated code review for Swift
strace - Trace system calls and signals. A diagnostic, debugging and instructional userspace utility.
Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
perf - Perf is a simple app monitoring solution paired with meaningful alerts.
CodeStream - CodeStream helps development teams resolve issues faster, and improve code quality by streamlining code reviews inside your IDE
DTrace - DTrace is a performance analysis and troubleshooting tool for Solaris, Mac OS X and FreeBSD.