
Description: Doorbell.io is a real-time website chat and analytics platform. It allows businesses to engage with website visitors through live chat and gather visitor insights. Key features include unlimited chat agents, chatbots, visitor analytics, and integration with popular tools.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Zendesk is a customer service software company that provides products to manage customer support interactions. Its flagship product, Zendesk Support, is a help desk ticketing system that allows companies to track, respond to, and resolve customer support tickets.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API