InvoicePlane is a self-hosted open source application for managing your quotes, invoices, clients and payments. Developed by Kovah
License: Open Source
InvoicePlane is an open-source invoicing solution that offers extensive customization and is free to use, making it ideal for tech-savvy users. In contrast, Pancake is a user-friendly, subscription-based tool that combines invoicing with project management features, catering to freelancers and small businesses looking for an all-in-one solution.