Billy is an AI-powered invoicing app that can create invoices with just a single prompt. Just provide the details of your work/services and Billy will generate a professional invoice for you. You can then download the invoice in PDF format or send it directly to your customer. The platform offers a 7-day free trial and can also be integrated with Stripe, which gives your customers many different payment methods to work with. On the paid plan, you get access to unlimited invoices, PDFs, and emails.