Livestream Studio™ software is available in both free and paid versions. Both can be downloaded onto any Windows 7 or higher 64-bit system from here.
The difference between the free Livestream Studio and paid Livestream Studio is the extent to which you have access to certain features. For example, the paid Studio license gives you the ability to add up to 10 remote camera sources, where as the free version only adds one remote camera source. However, there is no restriction on which type of remote camera you can use in that remote camera module.
When you purchase the software, you will receive a USB dongle that must be plugged into a USB 2.0 port on your system to access all available features.
Below is a comparison chart that highlights which features each version allows you to have access to:
If you have Livestream Studio and are unsure what features you are able to access, go click the gearwheel in the upper right corner of Livestream Studio and navigate to the License tab. This will provide further details for what your Studio license allows you to do.