
Description: Billsup is an online invoicing and billing software designed for freelancers and small businesses. It allows users to create professional invoices, track payments and expenses, manage clients and projects, and automate billing and invoicing workflows.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: IOUHub is an open-source software for eye tracking research. It allows recording, analyzing and visualizing eye movements and pupil sizes. Useful for psychology, marketing, design and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API