
Description: Orion Viewer is a free open-source image viewer focused on speed and usability. It's lightweight with support for common raster image formats like JPEG, PNG, BMP, as well as RAW formats. Key features include basic image editing, exif data display, customizable themes, and customizable keyboard shortcuts.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Adobe Acrobat Reader is a free software application for viewing, printing, signing, and annotating PDF documents. It is the standard PDF viewer and one of the most popular free software downloads with over 2 billion installations.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API