
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: SharpDevelop is a free and open source integrated development environment for C#, Visual Basic .NET, Boo, IronPython, IronRuby and F# projects on Microsoft .NET platforms. It provides code completion, code navigation, localization support, debugging functionality and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API