
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: Trigger.IO is a platform that allows developers to build mobile apps using web technologies like HTML, CSS, and JavaScript. It wraps web code into native mobile apps for iOS, Android, and Windows Phone.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API