"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 industries like cloud computing, where users are charged based on the amount of storage or processing power they consume. It allows for flexibility and can lead to cost savings for users who may not need constant access. This model is also seen in services like car rentals or utilities, where customers are billed based on their usage. By adopting a pay-per-use system, businesses can attract a wider range of customers who prefer to pay for what they need, making it a popular choice in various markets.