Pay-per-use is a pricing model where customers pay only for the services or products they actually use, rather than a flat fee. This approach is common in various industries, such as cloud computing, telecommunications, and transportation. It allows users to access resources without committing to long-term contracts, making it more flexible and cost-effective. In a pay-per-use system, charges are typically based on metrics like time, quantity, or consumption. For example, a ride-sharing service may charge users based on the distance traveled, while a software platform might bill based on the number of transactions processed. This model can help businesses optimize their expenses.