Download of BlocklyPropClient 0.6.2 for Mac was available 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 app was originally created by Parallax Inc.
The most recent installer that can be downloaded is 6.2 MB in size. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software is included in Developer Tools.
From the developer:
BlocklyPropClient is a Python client for the hosted version of BlocklyProp. It provides the spin and Prop-C compiler. It can load your programs into the prop and creates a serial connection from the browser to the propeller. It offers access to the propeller for loading binaries and serial terminal.
You may want to check out more software for Mac, such as ChIDE, EcoLab or flex sdk 3, which might be related to BlocklyPropClient.