
Description: REI3 is an open-source requirements engineering tool that supports iterative and incremental software development. It allows users to model, analyze, and manage requirements and helps coordinate software teams toward understanding and delivering expected functionality.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tadabase is an open-source Airtable alternative for building customizable databases and applications. It provides an easy-to-use interface for managing data with features like drag-and-drop tables, views, automations, and integrations.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API