No BETA available at the moment. 

The latest Wavetool release version uses Metal (instead OpenGL) for graphics. In case your computer is older than 2015, it might not support Metal. In this case, please use the previous versions 3.66 and 3.57 (Wavetool Remote). To check if you computer supports Metal, go to Apple menu -> About this Mac -> System report -> Graphics/Displays and see if Metal is supported.