
Description: Android Builder is an integrated development environment and visual layout tool for building Android apps. It allows you to drag-and-drop widgets, write code, preview layouts on various devices, and compile APK packages ready for distribution on the Google Play store.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: MIT App Inventor is a visual programming tool that allows anyone to build fully functional apps for Android devices. It uses a building blocks interface that enables dragging, dropping and configuring app components without writing code.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API