
Description: Reedah is a free, open-source PDF reader and annotation tool. It allows users to view, annotate, organize, and collaborate on PDF documents. Key features include commenting, highlighting text, drawing shapes, sticky notes, freehand writing, and sharing annotations.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: An Otter is a free, open source RSS reader and aggregator for Windows. It allows you to subscribe to RSS feeds and view new articles in a clean, ad-free interface. Key features include full-text search, customizable categories and tagging, offline reading support, and integration with services like Pocket.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API