One software license is required per developer. You may make copies on more than one computer, as long as the use of the software is by the same licensed developer.
Run-time royalty free.

Subscription includes (All for 1 year):

• Gold Support:All support issues addressed by Senior Support Engineers
• Issue escalation to product development teams
• Guaranteed response time: 24h
• Unlimited Web-based requests using mySupport
• Priority involvement in Beta Programs
• Access to Telerik forum
• All available paid upgrades to your product, guaranteed for twelve months from purchase date