Salmon

A fast, offline-first, open-source guitar tuner for Android.

Most tuner apps today have evolved into subscription platforms,

requiring internet connectivity, accounts, advertisements, or

cloud services for functionality that should work entirely on-device.

Features

Useful UI

Real-time microphone input

Pitch detection

Note detection

Cents offset visualization

Guitar tuning mode (E2 A D G B E4)

Offline operation