InvoicePlane is described as 'Self-hosted open source application for managing your quotes, invoices, clients and payments. The application comes with various options, templates and settings to customize your invoicing experience' and is a popular Invoicing software in the business & commerce category. There are more than 100 alternatives to InvoicePlane for a variety of platforms, including Web-based, Mac, iPhone, Windows and Android apps. The best InvoicePlane alternative is Odoo, which is both free and Open Source. Other great apps like InvoicePlane are Craftplan, ERPNext, Midday and Invoice Ninja.