Boku is a mobile payment service that allows users to make purchases using their mobile devices. It enables users to pay for goods and services by charging the cost directly to their mobile phone bill or prepaid balance. This service is particularly popular for online transactions, such as buying apps, games, and digital content. The platform is designed to be user-friendly, requiring minimal setup. Users simply need to enter their mobile number to initiate a payment, making it a convenient option for those who prefer not to use credit cards or other payment methods. Boku is available in various countries and supports multiple currencies.