The Professional license is a bundle of 5 Standard licenses. The Professional license also entitles you to Priority support. This license is best suited for companies or individual developers who want to implement r.a.d.designer in up to 5 projects. Does not have limitations for the number of developers working with the control. Can be upgraded to a 4 Developer or Enterprise license. The subscription is valid for a period of one year and entitles you to free minor and major version upgrades. After your subscription expires, you will need to renew your subscription to have access to new product upgrades. You can, however, continue to use the r.a.d.designer and r.a.d.editor updates that were released while your subscription was active.