oXygen XML Web Author uses a subscription floating license model with a minimum commitment period of 12 months. When you sign up for one of our subscription packages, you will be charged for 1 year of subscription up front. According to your settings, your subscriptions can automatically be renewed each year, unless you cancel prior to the next billing date.
The license key you receive contains the maximum number of user sessions that can simultaneously access the Web Author at any given moment. After a period of inactivity, the license allocated to that user session becomes available. While no personal information is sent to the server, a cookie that identifies the user session is auto-generated. Note that the use of two different browsers (for example, Firefox and Chrome) by a single user, will consume two floating licenses. However, using two or more windows or tabs of the same browser accounts for a single floating license.
For more details, please see Oxygen Web Author End User License Agreement.