Pay-as-you-go

Pay-as-you-go makes money by charging customers only for the exact amount they use. You don’t need a giant bank loan’s permission to start; you just rent the digital power you need. The secret sauce is the complex math that manages millions of tiny payments at once. This model uses code to build a “digital utility” that earns money every second of the day. AWS and Twilio show how to become the “pipes” of the internet.