
Description: B4X is a cross-platform development tool that allows developers to write apps in Basic language and deploy to Android, iOS, Windows, Linux, MacOS and Raspberry Pi. It provides a simple IDE and powerful frameworks for building GUI, accessing device features, remote communications, databases, etc.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tabris is an open-source framework for developing native mobile apps with JavaScript. It allows building iOS, Android and Windows apps from a single codebase. Tabris leverages web technologies like JavaScript and CSS while still providing access to native device APIs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API