You can install Spine on up to two computers for your own use, and you can move your license to a new computer if needed. When you activate Spine on a new computer, the old installation will automatically be logged out. There is no strict limit on how many times you can move your license, but if you activate too many times in a short period, the licensing system may recognize this as illegal use and deactivate your license. If this happens, you can contact Esoteric Software to have your license reactivated.