
Description: InvoiceOcean is an online invoicing and billing software designed for freelancers, consultants, accountants and small businesses. It allows users to easily create, customize and send professional invoices, track payments and expenses, manage clients and projects, and integrate with popular accounting software.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API