
Description: Stack is a PDF scanner and organizer app developed by Google's Area 120 incubator. It allows users to easily scan documents and receipts into PDFs using their phone's camera. Key features include smart cropping, auto enhancements, and the ability to search scanned content.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GImageReader is an open source optical character recognition software for Linux. It allows scanning and converting printed documents, images, screenshots, and PDF files to searchable and editable text documents.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API