This is the most relevant part of the license of Remote Buddy with regards to your question:
You may install IOSPIRIT Software
(a) for multiple users on a single machine, provided that you make sure that all users have read and agreed to this license- or -
(b) on multiple machines for use by a single user.In any case, a single license and license code may never be in use by multiple users on multiple machines, regardless of whether this use is concurrent or not.
Please note that this is just an excerpt of Remote Buddy's license. Please read it entirely as to not misinterpret this excerpt.