How many computers can you install Dragon NaturallySpeaking v13 Professional on using a single license?
Dragon® NaturallySpeaking v13 Professional and Legal editions can be installed initially on up to 4 computers before you will receive a license error. Technically, Nuance® will allow you to install the applications on up to 10 computers, but you will have to request a license activation increase from the Nuance support team.
Verification Source and Date
Nuance Support Team, 12/2015