
Description: Letterspace is an open-source word processor focused on writing and editing long-form texts like novels and essays. It has a clean, distraction-free interface with features like syntax highlighting, markdown support, and custom themes.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Hyperdraft is a collaborative document writing editor that allows real-time co-authoring and commenting. It has a clean and intuitive interface for creating blog posts, articles, documentation and other content with live updates.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API