
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: Sleek Bill is an intuitive, easy-to-use invoicing and billing software for freelancers and small businesses. It allows creating professional-looking invoices, estimates and receipts in just a few clicks.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API