To use this application, you need to run at least Mac OS X 10.5. If you don't meet this minimum requirement, you will not be able to run it.
To use this application, you first need to connect your Android device to the Mac and then start this. Also, you need to make sure that your device is in Media device (MTP) transfer mode. You can do this by swiping from the top of the screen to see the notification window and then tap on Connect as. For further support, visit the official website.