KHS Guitar Tuner Pro is an Android and iOS application that can assist guitarists with a variety of different tuning setups. The app can play notes within the selected tuning to use as a reference, and it uses incoming audio from the microphone to give musicians a visual indicator of what pitch is being played. It also contains a metronome with multiple timing options, making it useful for the whole practice session.
The application was written with Flutter to share a single implementation across multiple platforms. It was built in accordance with the Bloc design pattern for code organization.