The best Invoicing alternative to Firefly III is Manager, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to Firefly III and three of them are Invoicing Software so hopefully you can find a suitable replacement. Other interesting Invoicing Software alternatives to Firefly III are InvoiceShelf and Bookipi.
Manager is free accounting software for Windows, Mac and Linux.
It features an intuitive and innovative user interface with modules such as cashbook, invoicing, receivables, payables, taxes and comprehensive financial reports.
The desktop edition is free while the cloud edition.
InvoiceShelf is an open-source web & mobile app that helps you track expenses, payments & create professional invoices & estimates.
Award winning best FREE invoice maker app for small businesses! Unlimited invoice & customers. Organize your bookkeeping from anywhere. Keep track of all income, items, customers and export a PDF report of any page for easy accounting.
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