
Description: Appen is a web data annotation platform that helps train AI models by having a crowd of workers manually label data. Companies hire Appen to provide human annotated data.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Amazon Mechanical Turk is a crowdsourcing marketplace that enables individuals and businesses to outsource microtasks to a distributed workforce who can perform these tasks virtually.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API