First of all, our software does not feature third-party ads, malware, or unexpected bundling. We routinely do checks at VirusTotal.
In order to install this product you will need to download its corresponding setup file to the computer you are planning to use this product on (Internet connection is not required for the product to function).
After download is complete you should run the executable and follow instructions presented by setup wizard.
You should open the DMG disk image and drag & drop the application package from it into the Applications folder located on the harddisk.
Version updates are handled in a similar way. You do not need to uninstall any previously installed version - just install the newer version over the existing one. You will not need to re-enter your registration details this way.