
Description: Paid Today is a time tracking and invoicing software designed for freelancers and small agencies. It allows users to track billable hours, create professional invoices, accept online payments, and get paid faster.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Zendo is an open-source platform for building and sharing interactive tutorials and explanations. It allows users to create tutorials with steps, expected output, hints, and more to teach concepts interactively.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API