
Description: phonTuner is a software tool that allows users to tune musical instruments to the correct pitch and notes. It listens via the device's microphone and shows the detected note on screen, making it easy to tune guitars, ukuleles, violins, and other instruments.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: oTuner is a free, cross-platform auto-tuning application for musical instruments like guitar, bass, violin, and more. It listens to the sound played and gives visual feedback to help tune instruments quickly and accurately.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API