According to the company's End User License Agreement (EULA) policy, each purchased license provides a key that can be used for activation on two machines simultaneously. For more details, please refer to the following link: Devart EULA. 

It's important to note that a "user" also refers to the account under which the license was activated and which identifies the user as the license owner. Therefore, in this case, using the license by two different users on the same remote machine would be considered as activation on two separate machines.