
Description: Hyphen is an open-source word processor and page layout tool for Linux. It has basic word processing features like text formatting, spell check, tables, and images. Useful for simple documents.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Kdan PDF Reader is a free PDF viewer and editor for Windows, Mac and Linux. It allows you to view, annotate, and collaborate on PDF documents. Key features include tabbed viewing, annotation tools, form filling, encryption/decryption, and cloud storage integration.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API