A perpetual license is a type of software license that allows the buyer to use a specific version of the software indefinitely. Once purchased, the user has the right to install and use the software without any time limitations. This model is often contrasted with subscription licenses, which require ongoing payments for continued access. With a perpetual license, users typically receive updates and support for a limited time, after which they may need to pay for upgrades or additional support. This licensing model is common in software products like Microsoft Office and Adobe Creative Suite, where users prefer a one-time payment over recurring fees.