AltTuner - Alternate Guitar Tunings

AltTuner is a mobile app that centers on alternate guitar tunings, letting users browse a curated collection of over 55 tuning types and more than 320 songs tied to 145 artists. The interface lets you start from an artist, a specific track, or a tuning category, then follow connections between musicians who share the same pitch layout. Each tuning can be loaded directly into the built‑in precision tuner, which provides real‑time pitch detection with visual feedback.

The app includes a searchable database that links iconic tunings—such as Keith Richards’ Open G or Jimmy Page’s DADGAD—to the recordings that use them, covering genres from folk open tunings to metal drop tunings and experimental configurations. Users can mark favorite tunings for quick access, and the content is updated regularly with new songs and artists.

All functionality runs locally on the device; no cloud services, accounts, or subscriptions are required, and microphone input is processed only for tuning detection without storage. A one‑time purchase unlocks the full set of alternate tunings and unlimited favorites, while the core tuner and database remain free.