1. Extensions purchased on this site uses DBS Licensing system (not SketchUp licensing system)
  2. One purchase give you perpetual license for using extension
  3. Every license allows to use it on 2 different seats (working stations)
  4. Details about download, instalation and license are send on email after purchase
  5. If you face any problem with DBS Licensing system send an email (contact page)
  6. Extensions purchased in SketchUp Extension Warehouse uses SketchUp build-in licensing system