Kristian Kiel

Kristian Kiel is an independent software publisher operating through the website billevo.de, with a catalog currently consisting of a single product aimed at the German-speaking small business market. The company's flagship application, BILLEVO, is a locally installed invoicing solution designed for freelancers, self-employed professionals, and small enterprises that prefer to keep their financial data on their own systems rather than in the cloud. The software covers the essential stages of the billing workflow: it supports the creation of electronic invoices (E-Rechnung) in line with current German invoicing requirements, the preparation of quotations and estimates, and the management of payment reminders and dunning notices for overdue accounts. A notable feature is its DATEV export capability, which allows users to transfer booking data directly to the accounting format widely used by German tax advisors, simplifying collaboration with external accountants and streamlining tax preparation. Typical use cases include solo entrepreneurs who need to issue legally compliant invoices without subscribing to a monthly cloud service, tradespeople and consultants who want to convert quotes into invoices with minimal administrative effort, and small companies that require a reliable reminder process to maintain healthy cash flow. Because the application runs locally, it also appeals to users with heightened data protection expectations who wish to retain full control over sensitive customer and financial information. As a one-product publisher, Kristian Kiel concentrates its development effort on a focused niche within business productivity software, positioning BILLEVO as a practical, compliance-oriented alternative to larger accounting suites for the self-employed segment in Germany.