Frappe Books is described as 'From the makers of ERPNext, Frappe Books simplifies invoicing, billing, and accounting for freelancers and small business owners. Create professional invoices, generate beautiful PDFs and send them to your customers' and is a personal finance tool in the business & commerce category. There are more than 25 alternatives to Frappe Books for a variety of platforms, including Web-based, Windows, Linux, Android and iPhone apps. The best Frappe Books alternative is GnuCash, which is both free and Open Source. Other great apps like Frappe Books are Craftplan, ERPNext, MoneyTool and GreenStash.