
Description: Visual Subst is a free, open source application for Windows that allows users to easily replace one drive letter with another. It is useful for substituting drives to run programs or access data stored on external drives or disk images.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Extra Subst is a portable freeware that allows you to create virtual drives. It can be used to mount disk image files or physical drives and access their contents as if they were normal drives.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API