Tuner

Musical instrument pitch tuningGPL-3.0-only

Yet Another Tuner (Y.A.M.)

Simplistic metronome app by an amateur musicianGPL-3.0-only

Tuner

App for tuning musical instruments.GPL-3.0-or-later

Let's Bend: Harmonica Tuner

Harmonica tuner for learning bending techniques with real-time visual feedback.MIT

Semitone

tuner, metronome, and pianoGPL-3.0-or-later

Fiddle Assistant

Music tuner with tools for violinGPL-3.0-or-later

ccgt

console chromatic guitar tuner.GPL-3.0-only

Chronal

Metronome and tuner app designed for beginner and advanced musicians.CC0-1.0

Musekit

A simple tuner and metronome, no distractionsGPL-3.0-or-later

Hdhomerun Signal Meter

Signal meter for TV tunersGPL-3.0-only

Diatronome

A tuner, a visual metronome and a synthesizerGPL-3.0-or-later

Practice Hub

Tools for musiciansGPL-3.0-only

Night Mode Enabler

Enable NightMode on Android7+Apache-2.0

Tunerly

A minimalistic pitch tuning app for Guitar, Bass and Ukulele.GPL-3.0-only

Practice Suite

The Swiss army knife of musiciansAGPL-3.0-or-later