Piston 6.3 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application was originally produced by Fulcrum Technologies. We recommend checking the downloaded files with any free antivirus. Piston for Mac lies within Lifestyle Tools, more precisely Sports.
From the developer:
Piston focuses your teaching lens. The application helps you capture and accelerate learning moments during training and performances using your iPhone or iPad. Piston is built for teaching using multi-camera vision to enhance the knowledge transfer process. It creates a real impact at the point of best contact.
You may want to check out more software for Mac, such as MIDI Converter for Mac OS X, Midi Converter for Mac OSX or Sequoia Benchmark, which might be similar to Piston.
Teaching Tools