You must have got a main zip file named “chatbull-pro-5.0.0.zip� with your purchase. You will need to extract this file. Extracting this file will create a folder “chatbull-pro-5.0.0�.

Now, Go inside “chatbull-pro-5.0.0â€� and you will find a file “chatbull-mac-5.0.0.dmg”

Please install this file as your system follow process.