
Description: MidiKeys is a free, open-source MIDI keyboard app for Windows, Mac and Linux. It turns your computer keyboard into a piano-style MIDI keyboard that you can use to play software synthesizers or external MIDI devices. Simple and easy to use.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Perfect Piano is a free piano simulator app for Android and iOS devices. It features a realistic piano keyboard interface with support for all 88 keys, multiple instruments like piano, organ, and electric piano, recording and playback functions, and a song library with popular tunes to play along.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API