
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: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: An online guitar tuner is a web-based application that allows you to tune your guitar accurately using your computer's microphone or an external microphone. It detects the notes you play and tells you whether it is in tune or not.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API