The 0.1.3 version of CryptoShark for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within System Tools, more precisely System Optimization. We recommend checking the downloaded files with any free antivirus. This free software for Mac OS X was originally produced by Frida.
From the developer:
CryptoShark is a self-optimizing cross-platform code tracer based on dynamic recompilation, powered by Frida and Capstone. It works at the machine code level, no source code being required. The tool tags threads based on which APIs they use, showing you in real time what functions have been called, allowing you to study them by carefully injecting logging and other side-effect code.
You may want to check out more software for Mac, such as Stora Desktop Applications, Myth II Public Beta 2 Universal or SpotiFine, which might be similar to CryptoShark.