
Description: Crater is a free and open source browser-based invoice app for small teams and freelancers. It allows users to create professional invoices, estimates, expenses and track them online with no limits.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Debitoor is an online invoicing and accounting software designed for freelancers and small businesses. It allows users to create professional invoices, track expenses, manage VAT and taxes, monitor who has viewed invoices, and integrate with other business platforms.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API