
Description: InvoicePlane is an open-source self-hosted invoicing application. It allows small businesses to create and manage invoices, quotes, payments and customers. It has features for recurring invoices, tax rates, multiple currencies, invoice templates and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpenSourceBilling is an open source billing and invoicing software designed for small to medium sized businesses. It allows creating and sending professional invoices, tracking payments, managing clients, products and invoices. It can integrate with payment gateways.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API